Home / 726,896.10-1,090,344.15-680,240.10

Finding the Fourth Proportional to 726,896.10, 1,090,344.15 and 680,240.10

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Solution

The fourth proportional to 726,896.10, 1,090,344.15 and 680,240.10 is: 1,020,360.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,896.10 : 1,090,344.15 = 680,240.10 : x
  2. Step 2: Convert to fraction form
    726,896.10/1,090,344.15 = 680,240.10/x
  3. Step 3: Cross multiply
    726,896.10x = 1,090,344.15 × 680,240.10
  4. Step 4: Simplify right side
    726,896.10x = 741,695,813,630.42
  5. Step 5: Solve for x
    x = 741,695,813,630.42/726,896.10
  6. Step 6: Final answer
    x = 1,020,360.15

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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.