Home / 739,385.70-1,109,078.64-178,420.20

Finding the Fourth Proportional to 739,385.70, 1,109,078.64 and 178,420.20

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Solution

The fourth proportional to 739,385.70, 1,109,078.64 and 178,420.20 is: 267,630.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,385.70 : 1,109,078.64 = 178,420.20 : x
  2. Step 2: Convert to fraction form
    739,385.70/1,109,078.64 = 178,420.20/x
  3. Step 3: Cross multiply
    739,385.70x = 1,109,078.64 × 178,420.20
  4. Step 4: Simplify right side
    739,385.70x = 197,882,032,764.53
  5. Step 5: Solve for x
    x = 197,882,032,764.53/739,385.70
  6. Step 6: Final answer
    x = 267,630.32

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Half scale
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Double scale
Find fourth proportional to 739,386.70, 1,109,080.14 and 178,421.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.