Home / 715,480.80-1,073,221.20-322,264.80

Finding the Fourth Proportional to 715,480.80, 1,073,221.20 and 322,264.80

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Solution

The fourth proportional to 715,480.80, 1,073,221.20 and 322,264.80 is: 483,397.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,480.80 : 1,073,221.20 = 322,264.80 : x
  2. Step 2: Convert to fraction form
    715,480.80/1,073,221.20 = 322,264.80/x
  3. Step 3: Cross multiply
    715,480.80x = 1,073,221.20 × 322,264.80
  4. Step 4: Simplify right side
    715,480.80x = 345,861,415,373.76
  5. Step 5: Solve for x
    x = 345,861,415,373.76/715,480.80
  6. Step 6: Final answer
    x = 483,397.20

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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.