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Finding the Fourth Proportional to 518,480.52, 777,717.12 and 144,503.52

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Solution

The fourth proportional to 518,480.52, 777,717.12 and 144,503.52 is: 216,754.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,480.52 : 777,717.12 = 144,503.52 : x
  2. Step 2: Convert to fraction form
    518,480.52/777,717.12 = 144,503.52/x
  3. Step 3: Cross multiply
    518,480.52x = 777,717.12 × 144,503.52
  4. Step 4: Simplify right side
    518,480.52x = 112,382,861,404.26
  5. Step 5: Solve for x
    x = 112,382,861,404.26/518,480.52
  6. Step 6: Final answer
    x = 216,754.26

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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.