Home / 687,551.70-1,031,327.55-288,059.70

Finding the Fourth Proportional to 687,551.70, 1,031,327.55 and 288,059.70

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Solution

The fourth proportional to 687,551.70, 1,031,327.55 and 288,059.70 is: 432,089.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,551.70 : 1,031,327.55 = 288,059.70 : x
  2. Step 2: Convert to fraction form
    687,551.70/1,031,327.55 = 288,059.70/x
  3. Step 3: Cross multiply
    687,551.70x = 1,031,327.55 × 288,059.70
  4. Step 4: Simplify right side
    687,551.70x = 297,083,904,654.74
  5. Step 5: Solve for x
    x = 297,083,904,654.74/687,551.70
  6. Step 6: Final answer
    x = 432,089.55

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Similar ratio
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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.