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Finding the Fourth Proportional to 481,337.70, 722,006.55 and 439,347.30

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Solution

The fourth proportional to 481,337.70, 722,006.55 and 439,347.30 is: 659,020.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,337.70 : 722,006.55 = 439,347.30 : x
  2. Step 2: Convert to fraction form
    481,337.70/722,006.55 = 439,347.30/x
  3. Step 3: Cross multiply
    481,337.70x = 722,006.55 × 439,347.30
  4. Step 4: Simplify right side
    481,337.70x = 317,211,628,324.82
  5. Step 5: Solve for x
    x = 317,211,628,324.82/481,337.70
  6. Step 6: Final answer
    x = 659,020.95

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Similar ratio
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1.5x scale

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.