Home / 409,724.60-614,673.30-172,945.40

Finding the Fourth Proportional to 409,724.60, 614,673.30 and 172,945.40

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Solution

The fourth proportional to 409,724.60, 614,673.30 and 172,945.40 is: 259,454.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,724.60 : 614,673.30 = 172,945.40 : x
  2. Step 2: Convert to fraction form
    409,724.60/614,673.30 = 172,945.40/x
  3. Step 3: Cross multiply
    409,724.60x = 614,673.30 × 172,945.40
  4. Step 4: Simplify right side
    409,724.60x = 106,304,919,737.82
  5. Step 5: Solve for x
    x = 106,304,919,737.82/409,724.60
  6. Step 6: Final answer
    x = 259,454.57

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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.