Home / 739,045.80-1,108,568.70-265,746.60

Finding the Fourth Proportional to 739,045.80, 1,108,568.70 and 265,746.60

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Solution

The fourth proportional to 739,045.80, 1,108,568.70 and 265,746.60 is: 398,619.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,045.80 : 1,108,568.70 = 265,746.60 : x
  2. Step 2: Convert to fraction form
    739,045.80/1,108,568.70 = 265,746.60/x
  3. Step 3: Cross multiply
    739,045.80x = 1,108,568.70 × 265,746.60
  4. Step 4: Simplify right side
    739,045.80x = 294,598,362,891.42
  5. Step 5: Solve for x
    x = 294,598,362,891.42/739,045.80
  6. Step 6: Final answer
    x = 398,619.90

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Half scale
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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.