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Finding the Fourth Proportional to 400,655.87, 552,957.91 and 228,534.41

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Solution

The fourth proportional to 400,655.87, 552,957.91 and 228,534.41 is: 315,407.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,655.87 : 552,957.91 = 228,534.41 : x
  2. Step 2: Convert to fraction form
    400,655.87/552,957.91 = 228,534.41/x
  3. Step 3: Cross multiply
    400,655.87x = 552,957.91 × 228,534.41
  4. Step 4: Simplify right side
    400,655.87x = 126,369,910,527.74
  5. Step 5: Solve for x
    x = 126,369,910,527.74/400,655.87
  6. Step 6: Final answer
    x = 315,407.61

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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.