Home / 781,002.36-1,170,166.22-426,265.28

Finding the Fourth Proportional to 781,002.36, 1,170,166.22 and 426,265.28

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Solution

The fourth proportional to 781,002.36, 1,170,166.22 and 426,265.28 is: 638,668.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,002.36 : 1,170,166.22 = 426,265.28 : x
  2. Step 2: Convert to fraction form
    781,002.36/1,170,166.22 = 426,265.28/x
  3. Step 3: Cross multiply
    781,002.36x = 1,170,166.22 × 426,265.28
  4. Step 4: Simplify right side
    781,002.36x = 498,801,231,414.84
  5. Step 5: Solve for x
    x = 498,801,231,414.84/781,002.36
  6. Step 6: Final answer
    x = 638,668.02

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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.