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Finding the Fourth Proportional to 579,812.76, 869,801.16 and 180,493.88

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Solution

The fourth proportional to 579,812.76, 869,801.16 and 180,493.88 is: 270,766.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,812.76 : 869,801.16 = 180,493.88 : x
  2. Step 2: Convert to fraction form
    579,812.76/869,801.16 = 180,493.88/x
  3. Step 3: Cross multiply
    579,812.76x = 869,801.16 × 180,493.88
  4. Step 4: Simplify right side
    579,812.76x = 156,993,786,196.90
  5. Step 5: Solve for x
    x = 156,993,786,196.90/579,812.76
  6. Step 6: Final answer
    x = 270,766.35

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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.