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Finding the Fourth Proportional to 478,877.04, 718,256.88 and 123,861.60

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Solution

The fourth proportional to 478,877.04, 718,256.88 and 123,861.60 is: 185,777.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,877.04 : 718,256.88 = 123,861.60 : x
  2. Step 2: Convert to fraction form
    478,877.04/718,256.88 = 123,861.60/x
  3. Step 3: Cross multiply
    478,877.04x = 718,256.88 × 123,861.60
  4. Step 4: Simplify right side
    478,877.04x = 88,964,446,367.81
  5. Step 5: Solve for x
    x = 88,964,446,367.81/478,877.04
  6. Step 6: Final answer
    x = 185,777.22

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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.