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Finding the Fourth Proportional to 508,433.58, 762,654.74 and 129,354.74

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Solution

The fourth proportional to 508,433.58, 762,654.74 and 129,354.74 is: 194,033.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,433.58 : 762,654.74 = 129,354.74 : x
  2. Step 2: Convert to fraction form
    508,433.58/762,654.74 = 129,354.74/x
  3. Step 3: Cross multiply
    508,433.58x = 762,654.74 × 129,354.74
  4. Step 4: Simplify right side
    508,433.58x = 98,653,005,602.47
  5. Step 5: Solve for x
    x = 98,653,005,602.47/508,433.58
  6. Step 6: Final answer
    x = 194,033.22

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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.