Home / 409,402.28-614,018.72-109,811.58

Finding the Fourth Proportional to 409,402.28, 614,018.72 and 109,811.58

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Solution

The fourth proportional to 409,402.28, 614,018.72 and 109,811.58 is: 164,694.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,402.28 : 614,018.72 = 109,811.58 : x
  2. Step 2: Convert to fraction form
    409,402.28/614,018.72 = 109,811.58/x
  3. Step 3: Cross multiply
    409,402.28x = 614,018.72 × 109,811.58
  4. Step 4: Simplify right side
    409,402.28x = 67,426,365,792.78
  5. Step 5: Solve for x
    x = 67,426,365,792.78/409,402.28
  6. Step 6: Final answer
    x = 164,694.65

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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.