Home / 652,013.20-977,436.60-427,481.20

Finding the Fourth Proportional to 652,013.20, 977,436.60 and 427,481.20

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Solution

The fourth proportional to 652,013.20, 977,436.60 and 427,481.20 is: 640,839.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,013.20 : 977,436.60 = 427,481.20 : x
  2. Step 2: Convert to fraction form
    652,013.20/977,436.60 = 427,481.20/x
  3. Step 3: Cross multiply
    652,013.20x = 977,436.60 × 427,481.20
  4. Step 4: Simplify right side
    652,013.20x = 417,835,770,691.92
  5. Step 5: Solve for x
    x = 417,835,770,691.92/652,013.20
  6. Step 6: Final answer
    x = 640,839.43

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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.