Home / 426,110.41-639,253.08-126,564.31

Finding the Fourth Proportional to 426,110.41, 639,253.08 and 126,564.31

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Solution

The fourth proportional to 426,110.41, 639,253.08 and 126,564.31 is: 189,872.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,110.41 : 639,253.08 = 126,564.31 : x
  2. Step 2: Convert to fraction form
    426,110.41/639,253.08 = 126,564.31/x
  3. Step 3: Cross multiply
    426,110.41x = 639,253.08 × 126,564.31
  4. Step 4: Simplify right side
    426,110.41x = 80,906,624,985.57
  5. Step 5: Solve for x
    x = 80,906,624,985.57/426,110.41
  6. Step 6: Final answer
    x = 189,872.44

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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.