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Finding the Fourth Proportional to 478,898, 718,620.92 and 242,259.92

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Solution

The fourth proportional to 478,898, 718,620.92 and 242,259.92 is: 363,528.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,898 : 718,620.92 = 242,259.92 : x
  2. Step 2: Convert to fraction form
    478,898/718,620.92 = 242,259.92/x
  3. Step 3: Cross multiply
    478,898x = 718,620.92 × 242,259.92
  4. Step 4: Simplify right side
    478,898x = 174,093,046,589.53
  5. Step 5: Solve for x
    x = 174,093,046,589.53/478,898
  6. Step 6: Final answer
    x = 363,528.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.