Home / 853,978.70-1,279,932.26-627,236.68

Finding the Fourth Proportional to 853,978.70, 1,279,932.26 and 627,236.68

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Solution

The fourth proportional to 853,978.70, 1,279,932.26 and 627,236.68 is: 940,094.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,978.70 : 1,279,932.26 = 627,236.68 : x
  2. Step 2: Convert to fraction form
    853,978.70/1,279,932.26 = 627,236.68/x
  3. Step 3: Cross multiply
    853,978.70x = 1,279,932.26 × 627,236.68
  4. Step 4: Simplify right side
    853,978.70x = 802,820,461,387.30
  5. Step 5: Solve for x
    x = 802,820,461,387.30/853,978.70
  6. Step 6: Final answer
    x = 940,094.25

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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.