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Finding the Fourth Proportional to 519,792.68, 717,376.14 and 315,876.92

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Solution

The fourth proportional to 519,792.68, 717,376.14 and 315,876.92 is: 435,947.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,792.68 : 717,376.14 = 315,876.92 : x
  2. Step 2: Convert to fraction form
    519,792.68/717,376.14 = 315,876.92/x
  3. Step 3: Cross multiply
    519,792.68x = 717,376.14 × 315,876.92
  4. Step 4: Simplify right side
    519,792.68x = 226,602,565,584.69
  5. Step 5: Solve for x
    x = 226,602,565,584.69/519,792.68
  6. Step 6: Final answer
    x = 435,947.97

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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.