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Finding the Fourth Proportional to 481,337.20, 722,005.80 and 439,346.80

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Solution

The fourth proportional to 481,337.20, 722,005.80 and 439,346.80 is: 659,020.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,337.20 : 722,005.80 = 439,346.80 : x
  2. Step 2: Convert to fraction form
    481,337.20/722,005.80 = 439,346.80/x
  3. Step 3: Cross multiply
    481,337.20x = 722,005.80 × 439,346.80
  4. Step 4: Simplify right side
    481,337.20x = 317,210,937,811.44
  5. Step 5: Solve for x
    x = 317,210,937,811.44/481,337.20
  6. Step 6: Final answer
    x = 659,020.20

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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.