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Finding the Fourth Proportional to 615,062.40, 922,265.55 and 259,674.90

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Solution

The fourth proportional to 615,062.40, 922,265.55 and 259,674.90 is: 389,373.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,062.40 : 922,265.55 = 259,674.90 : x
  2. Step 2: Convert to fraction form
    615,062.40/922,265.55 = 259,674.90/x
  3. Step 3: Cross multiply
    615,062.40x = 922,265.55 × 259,674.90
  4. Step 4: Simplify right side
    615,062.40x = 239,489,214,469.70
  5. Step 5: Solve for x
    x = 239,489,214,469.70/615,062.40
  6. Step 6: Final answer
    x = 389,373.85

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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.