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Finding the Fourth Proportional to 613,952.82, 921,134.19 and 272,349.12

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Solution

The fourth proportional to 613,952.82, 921,134.19 and 272,349.12 is: 408,614.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,952.82 : 921,134.19 = 272,349.12 : x
  2. Step 2: Convert to fraction form
    613,952.82/921,134.19 = 272,349.12/x
  3. Step 3: Cross multiply
    613,952.82x = 921,134.19 × 272,349.12
  4. Step 4: Simplify right side
    613,952.82x = 250,870,086,048.41
  5. Step 5: Solve for x
    x = 250,870,086,048.41/613,952.82
  6. Step 6: Final answer
    x = 408,614.60

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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.