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Finding the Fourth Proportional to 478,124.67, 659,816.43 and 263,272.42

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Solution

The fourth proportional to 478,124.67, 659,816.43 and 263,272.42 is: 363,318.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,124.67 : 659,816.43 = 263,272.42 : x
  2. Step 2: Convert to fraction form
    478,124.67/659,816.43 = 263,272.42/x
  3. Step 3: Cross multiply
    478,124.67x = 659,816.43 × 263,272.42
  4. Step 4: Simplify right side
    478,124.67x = 173,711,468,281.86
  5. Step 5: Solve for x
    x = 173,711,468,281.86/478,124.67
  6. Step 6: Final answer
    x = 363,318.35

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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.