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Finding the Fourth Proportional to 522,413.28, 720,938.88 and 296,053.92

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Solution

The fourth proportional to 522,413.28, 720,938.88 and 296,053.92 is: 408,559.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,413.28 : 720,938.88 = 296,053.92 : x
  2. Step 2: Convert to fraction form
    522,413.28/720,938.88 = 296,053.92/x
  3. Step 3: Cross multiply
    522,413.28x = 720,938.88 × 296,053.92
  4. Step 4: Simplify right side
    522,413.28x = 213,436,781,504.41
  5. Step 5: Solve for x
    x = 213,436,781,504.41/522,413.28
  6. Step 6: Final answer
    x = 408,559.26

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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.