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Finding the Fourth Proportional to 478,297.88, 660,081.02 and 263,437.86

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Solution

The fourth proportional to 478,297.88, 660,081.02 and 263,437.86 is: 363,560.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,297.88 : 660,081.02 = 263,437.86 : x
  2. Step 2: Convert to fraction form
    478,297.88/660,081.02 = 263,437.86/x
  3. Step 3: Cross multiply
    478,297.88x = 660,081.02 × 263,437.86
  4. Step 4: Simplify right side
    478,297.88x = 173,890,331,335.42
  5. Step 5: Solve for x
    x = 173,890,331,335.42/478,297.88
  6. Step 6: Final answer
    x = 363,560.74

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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.