Home / 739,939.40-1,109,909.10-456,504.20

Finding the Fourth Proportional to 739,939.40, 1,109,909.10 and 456,504.20

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Solution

The fourth proportional to 739,939.40, 1,109,909.10 and 456,504.20 is: 684,756.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,939.40 : 1,109,909.10 = 456,504.20 : x
  2. Step 2: Convert to fraction form
    739,939.40/1,109,909.10 = 456,504.20/x
  3. Step 3: Cross multiply
    739,939.40x = 1,109,909.10 × 456,504.20
  4. Step 4: Simplify right side
    739,939.40x = 506,678,165,768.22
  5. Step 5: Solve for x
    x = 506,678,165,768.22/739,939.40
  6. Step 6: Final answer
    x = 684,756.30

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Double scale
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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.