Home / 787,354.48-1,179,256.08-365,743.12

Finding the Fourth Proportional to 787,354.48, 1,179,256.08 and 365,743.12

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Solution

The fourth proportional to 787,354.48, 1,179,256.08 and 365,743.12 is: 547,789.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,354.48 : 1,179,256.08 = 365,743.12 : x
  2. Step 2: Convert to fraction form
    787,354.48/1,179,256.08 = 365,743.12/x
  3. Step 3: Cross multiply
    787,354.48x = 1,179,256.08 × 365,743.12
  4. Step 4: Simplify right side
    787,354.48x = 431,304,797,978.17
  5. Step 5: Solve for x
    x = 431,304,797,978.17/787,354.48
  6. Step 6: Final answer
    x = 547,789.86

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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.