Home / 426,376.33-639,506.17-126,903.13

Finding the Fourth Proportional to 426,376.33, 639,506.17 and 126,903.13

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Solution

The fourth proportional to 426,376.33, 639,506.17 and 126,903.13 is: 190,337.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,376.33 : 639,506.17 = 126,903.13 : x
  2. Step 2: Convert to fraction form
    426,376.33/639,506.17 = 126,903.13/x
  3. Step 3: Cross multiply
    426,376.33x = 639,506.17 × 126,903.13
  4. Step 4: Simplify right side
    426,376.33x = 81,155,334,627.31
  5. Step 5: Solve for x
    x = 81,155,334,627.31/426,376.33
  6. Step 6: Final answer
    x = 190,337.34

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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.