Home / 409,723.60-614,974.20-252,259.60

Finding the Fourth Proportional to 409,723.60, 614,974.20 and 252,259.60

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Solution

The fourth proportional to 409,723.60, 614,974.20 and 252,259.60 is: 378,628.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,723.60 : 614,974.20 = 252,259.60 : x
  2. Step 2: Convert to fraction form
    409,723.60/614,974.20 = 252,259.60/x
  3. Step 3: Cross multiply
    409,723.60x = 614,974.20 × 252,259.60
  4. Step 4: Simplify right side
    409,723.60x = 155,133,145,702.32
  5. Step 5: Solve for x
    x = 155,133,145,702.32/409,723.60
  6. Step 6: Final answer
    x = 378,628.78

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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.