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Finding the Fourth Proportional to 508,029.54, 762,046.85 and 128,950.39

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Solution

The fourth proportional to 508,029.54, 762,046.85 and 128,950.39 is: 193,426.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,029.54 : 762,046.85 = 128,950.39 : x
  2. Step 2: Convert to fraction form
    508,029.54/762,046.85 = 128,950.39/x
  3. Step 3: Cross multiply
    508,029.54x = 762,046.85 × 128,950.39
  4. Step 4: Simplify right side
    508,029.54x = 98,266,234,695.54
  5. Step 5: Solve for x
    x = 98,266,234,695.54/508,029.54
  6. Step 6: Final answer
    x = 193,426.22

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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.