Home / 725,057.40-1,087,586.10-606,959.40

Finding the Fourth Proportional to 725,057.40, 1,087,586.10 and 606,959.40

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Solution

The fourth proportional to 725,057.40, 1,087,586.10 and 606,959.40 is: 910,439.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,057.40 : 1,087,586.10 = 606,959.40 : x
  2. Step 2: Convert to fraction form
    725,057.40/1,087,586.10 = 606,959.40/x
  3. Step 3: Cross multiply
    725,057.40x = 1,087,586.10 × 606,959.40
  4. Step 4: Simplify right side
    725,057.40x = 660,120,606,704.34
  5. Step 5: Solve for x
    x = 660,120,606,704.34/725,057.40
  6. Step 6: Final answer
    x = 910,439.10

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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.