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Finding the Fourth Proportional to 506,637.52, 699,180.36 and 280,279.12

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Solution

The fourth proportional to 506,637.52, 699,180.36 and 280,279.12 is: 386,796.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,637.52 : 699,180.36 = 280,279.12 : x
  2. Step 2: Convert to fraction form
    506,637.52/699,180.36 = 280,279.12/x
  3. Step 3: Cross multiply
    506,637.52x = 699,180.36 × 280,279.12
  4. Step 4: Simplify right side
    506,637.52x = 195,965,656,022.08
  5. Step 5: Solve for x
    x = 195,965,656,022.08/506,637.52
  6. Step 6: Final answer
    x = 386,796.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.