Home / 426,129.34-639,216.04-404,581.12

Finding the Fourth Proportional to 426,129.34, 639,216.04 and 404,581.12

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Solution

The fourth proportional to 426,129.34, 639,216.04 and 404,581.12 is: 606,892.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,129.34 : 639,216.04 = 404,581.12 : x
  2. Step 2: Convert to fraction form
    426,129.34/639,216.04 = 404,581.12/x
  3. Step 3: Cross multiply
    426,129.34x = 639,216.04 × 404,581.12
  4. Step 4: Simplify right side
    426,129.34x = 258,614,741,385.17
  5. Step 5: Solve for x
    x = 258,614,741,385.17/426,129.34
  6. Step 6: Final answer
    x = 606,892.60

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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.