Home / 765,610.20-1,056,531.69-426,078.45

Finding the Fourth Proportional to 765,610.20, 1,056,531.69 and 426,078.45

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Solution

The fourth proportional to 765,610.20, 1,056,531.69 and 426,078.45 is: 587,982.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,610.20 : 1,056,531.69 = 426,078.45 : x
  2. Step 2: Convert to fraction form
    765,610.20/1,056,531.69 = 426,078.45/x
  3. Step 3: Cross multiply
    765,610.20x = 1,056,531.69 × 426,078.45
  4. Step 4: Simplify right side
    765,610.20x = 450,165,384,851.08
  5. Step 5: Solve for x
    x = 450,165,384,851.08/765,610.20
  6. Step 6: Final answer
    x = 587,982.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.