Home / 851,140.48-1,172,982.72-635,900.80

Finding the Fourth Proportional to 851,140.48, 1,172,982.72 and 635,900.80

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Solution

The fourth proportional to 851,140.48, 1,172,982.72 and 635,900.80 is: 876,354.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,140.48 : 1,172,982.72 = 635,900.80 : x
  2. Step 2: Convert to fraction form
    851,140.48/1,172,982.72 = 635,900.80/x
  3. Step 3: Cross multiply
    851,140.48x = 1,172,982.72 × 635,900.80
  4. Step 4: Simplify right side
    851,140.48x = 745,900,650,034.18
  5. Step 5: Solve for x
    x = 745,900,650,034.18/851,140.48
  6. Step 6: Final answer
    x = 876,354.34

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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.