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Finding the Fourth Proportional to 478,750.72, 718,150.68 and 123,767.81

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Solution

The fourth proportional to 478,750.72, 718,150.68 and 123,767.81 is: 185,658.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,750.72 : 718,150.68 = 123,767.81 : x
  2. Step 2: Convert to fraction form
    478,750.72/718,150.68 = 123,767.81/x
  3. Step 3: Cross multiply
    478,750.72x = 718,150.68 × 123,767.81
  4. Step 4: Simplify right side
    478,750.72x = 88,883,938,708.99
  5. Step 5: Solve for x
    x = 88,883,938,708.99/478,750.72
  6. Step 6: Final answer
    x = 185,658.08

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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.