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Finding the Fourth Proportional to 479,963.88, 720,053.20 and 180,447.05

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Solution

The fourth proportional to 479,963.88, 720,053.20 and 180,447.05 is: 270,710.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,963.88 : 720,053.20 = 180,447.05 : x
  2. Step 2: Convert to fraction form
    479,963.88/720,053.20 = 180,447.05/x
  3. Step 3: Cross multiply
    479,963.88x = 720,053.20 × 180,447.05
  4. Step 4: Simplify right side
    479,963.88x = 129,931,477,806.31
  5. Step 5: Solve for x
    x = 129,931,477,806.31/479,963.88
  6. Step 6: Final answer
    x = 270,710.95

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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.