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Finding the Fourth Proportional to 533,733.52, 736,413.96 and 318,778.96

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Solution

The fourth proportional to 533,733.52, 736,413.96 and 318,778.96 is: 439,832.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,733.52 : 736,413.96 = 318,778.96 : x
  2. Step 2: Convert to fraction form
    533,733.52/736,413.96 = 318,778.96/x
  3. Step 3: Cross multiply
    533,733.52x = 736,413.96 × 318,778.96
  4. Step 4: Simplify right side
    533,733.52x = 234,753,276,298.28
  5. Step 5: Solve for x
    x = 234,753,276,298.28/533,733.52
  6. Step 6: Final answer
    x = 439,832.36

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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.