Home / 725,011.80-1,087,517.70-609,538.20

Finding the Fourth Proportional to 725,011.80, 1,087,517.70 and 609,538.20

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Solution

The fourth proportional to 725,011.80, 1,087,517.70 and 609,538.20 is: 914,307.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,011.80 : 1,087,517.70 = 609,538.20 : x
  2. Step 2: Convert to fraction form
    725,011.80/1,087,517.70 = 609,538.20/x
  3. Step 3: Cross multiply
    725,011.80x = 1,087,517.70 × 609,538.20
  4. Step 4: Simplify right side
    725,011.80x = 662,883,581,326.14
  5. Step 5: Solve for x
    x = 662,883,581,326.14/725,011.80
  6. Step 6: Final answer
    x = 914,307.30

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Double scale
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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.