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Finding the Fourth Proportional to 558,234.60, 782,578.20 and 558,234.60

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Solution

The fourth proportional to 558,234.60, 782,578.20 and 558,234.60 is: 782,578.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,234.60 : 782,578.20 = 558,234.60 : x
  2. Step 2: Convert to fraction form
    558,234.60/782,578.20 = 558,234.60/x
  3. Step 3: Cross multiply
    558,234.60x = 782,578.20 × 558,234.60
  4. Step 4: Simplify right side
    558,234.60x = 436,862,228,445.72
  5. Step 5: Solve for x
    x = 436,862,228,445.72/558,234.60
  6. Step 6: Final answer
    x = 782,578.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.