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Finding the Fourth Proportional to 650,342.12, 980,387.64 and 606,990.92

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Solution

The fourth proportional to 650,342.12, 980,387.64 and 606,990.92 is: 915,035.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,342.12 : 980,387.64 = 606,990.92 : x
  2. Step 2: Convert to fraction form
    650,342.12/980,387.64 = 606,990.92/x
  3. Step 3: Cross multiply
    650,342.12x = 980,387.64 × 606,990.92
  4. Step 4: Simplify right side
    650,342.12x = 595,086,395,560.23
  5. Step 5: Solve for x
    x = 595,086,395,560.23/650,342.12
  6. Step 6: Final answer
    x = 915,035.91

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.