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Finding the Fourth Proportional to 478,182.49, 659,877.40 and 263,323.72

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Solution

The fourth proportional to 478,182.49, 659,877.40 and 263,323.72 is: 363,378.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,182.49 : 659,877.40 = 263,323.72 : x
  2. Step 2: Convert to fraction form
    478,182.49/659,877.40 = 263,323.72/x
  3. Step 3: Cross multiply
    478,182.49x = 659,877.40 × 263,323.72
  4. Step 4: Simplify right side
    478,182.49x = 173,761,371,711.93
  5. Step 5: Solve for x
    x = 173,761,371,711.93/478,182.49
  6. Step 6: Final answer
    x = 363,378.78

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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.