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Finding the Fourth Proportional to 478,887.45, 718,349.60 and 179,337.03

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Solution

The fourth proportional to 478,887.45, 718,349.60 and 179,337.03 is: 269,012.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,887.45 : 718,349.60 = 179,337.03 : x
  2. Step 2: Convert to fraction form
    478,887.45/718,349.60 = 179,337.03/x
  3. Step 3: Cross multiply
    478,887.45x = 718,349.60 × 179,337.03
  4. Step 4: Simplify right side
    478,887.45x = 128,826,683,765.69
  5. Step 5: Solve for x
    x = 128,826,683,765.69/478,887.45
  6. Step 6: Final answer
    x = 269,012.44

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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.