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Finding the Fourth Proportional to 656,649.60, 985,032 and 481,338.24

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Solution

The fourth proportional to 656,649.60, 985,032 and 481,338.24 is: 722,049.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,649.60 : 985,032 = 481,338.24 : x
  2. Step 2: Convert to fraction form
    656,649.60/985,032 = 481,338.24/x
  3. Step 3: Cross multiply
    656,649.60x = 985,032 × 481,338.24
  4. Step 4: Simplify right side
    656,649.60x = 474,133,569,223.68
  5. Step 5: Solve for x
    x = 474,133,569,223.68/656,649.60
  6. Step 6: Final answer
    x = 722,049.58

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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.