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Finding the Fourth Proportional to 508,035.60, 762,045.84 and 123,788.88

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Solution

The fourth proportional to 508,035.60, 762,045.84 and 123,788.88 is: 185,681.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,035.60 : 762,045.84 = 123,788.88 : x
  2. Step 2: Convert to fraction form
    508,035.60/762,045.84 = 123,788.88/x
  3. Step 3: Cross multiply
    508,035.60x = 762,045.84 × 123,788.88
  4. Step 4: Simplify right side
    508,035.60x = 94,332,801,042.26
  5. Step 5: Solve for x
    x = 94,332,801,042.26/508,035.60
  6. Step 6: Final answer
    x = 185,681.48

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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.