Home / 782,198.40-1,172,822.40-308,337.60

Finding the Fourth Proportional to 782,198.40, 1,172,822.40 and 308,337.60

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Solution

The fourth proportional to 782,198.40, 1,172,822.40 and 308,337.60 is: 462,319.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,198.40 : 1,172,822.40 = 308,337.60 : x
  2. Step 2: Convert to fraction form
    782,198.40/1,172,822.40 = 308,337.60/x
  3. Step 3: Cross multiply
    782,198.40x = 1,172,822.40 × 308,337.60
  4. Step 4: Simplify right side
    782,198.40x = 361,625,244,042.24
  5. Step 5: Solve for x
    x = 361,625,244,042.24/782,198.40
  6. Step 6: Final answer
    x = 462,319.08

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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.