Home / 667,898.40-1,002,503.70-331,319.10

Finding the Fourth Proportional to 667,898.40, 1,002,503.70 and 331,319.10

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Solution

The fourth proportional to 667,898.40, 1,002,503.70 and 331,319.10 is: 497,304.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,898.40 : 1,002,503.70 = 331,319.10 : x
  2. Step 2: Convert to fraction form
    667,898.40/1,002,503.70 = 331,319.10/x
  3. Step 3: Cross multiply
    667,898.40x = 1,002,503.70 × 331,319.10
  4. Step 4: Simplify right side
    667,898.40x = 332,148,623,630.67
  5. Step 5: Solve for x
    x = 332,148,623,630.67/667,898.40
  6. Step 6: Final answer
    x = 497,304.12

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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.