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Finding the Fourth Proportional to 532,137.70, 798,206.55 and 521,640.10

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Solution

The fourth proportional to 532,137.70, 798,206.55 and 521,640.10 is: 782,460.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,137.70 : 798,206.55 = 521,640.10 : x
  2. Step 2: Convert to fraction form
    532,137.70/798,206.55 = 521,640.10/x
  3. Step 3: Cross multiply
    532,137.70x = 798,206.55 × 521,640.10
  4. Step 4: Simplify right side
    532,137.70x = 416,376,544,562.66
  5. Step 5: Solve for x
    x = 416,376,544,562.66/532,137.70
  6. Step 6: Final answer
    x = 782,460.15

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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.