Home / 409,724.34-614,649.82-139,789.27

Finding the Fourth Proportional to 409,724.34, 614,649.82 and 139,789.27

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Solution

The fourth proportional to 409,724.34, 614,649.82 and 139,789.27 is: 209,705.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,724.34 : 614,649.82 = 139,789.27 : x
  2. Step 2: Convert to fraction form
    409,724.34/614,649.82 = 139,789.27/x
  3. Step 3: Cross multiply
    409,724.34x = 614,649.82 × 139,789.27
  4. Step 4: Simplify right side
    409,724.34x = 85,921,449,643.43
  5. Step 5: Solve for x
    x = 85,921,449,643.43/409,724.34
  6. Step 6: Final answer
    x = 209,705.51

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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.