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Finding the Fourth Proportional to 514,099.38, 709,449.81 and 284,634.66

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Solution

The fourth proportional to 514,099.38, 709,449.81 and 284,634.66 is: 392,791.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,099.38 : 709,449.81 = 284,634.66 : x
  2. Step 2: Convert to fraction form
    514,099.38/709,449.81 = 284,634.66/x
  3. Step 3: Cross multiply
    514,099.38x = 709,449.81 × 284,634.66
  4. Step 4: Simplify right side
    514,099.38x = 201,934,005,456.42
  5. Step 5: Solve for x
    x = 201,934,005,456.42/514,099.38
  6. Step 6: Final answer
    x = 392,791.77

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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.