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Finding the Fourth Proportional to 459,462.77, 634,115.15 and 278,237.72

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Solution

The fourth proportional to 459,462.77, 634,115.15 and 278,237.72 is: 384,002.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,462.77 : 634,115.15 = 278,237.72 : x
  2. Step 2: Convert to fraction form
    459,462.77/634,115.15 = 278,237.72/x
  3. Step 3: Cross multiply
    459,462.77x = 634,115.15 × 278,237.72
  4. Step 4: Simplify right side
    459,462.77x = 176,434,753,553.46
  5. Step 5: Solve for x
    x = 176,434,753,553.46/459,462.77
  6. Step 6: Final answer
    x = 384,002.29

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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.