Home / 850,720.78-1,174,077.42-635,487.20

Finding the Fourth Proportional to 850,720.78, 1,174,077.42 and 635,487.20

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Solution

The fourth proportional to 850,720.78, 1,174,077.42 and 635,487.20 is: 877,034.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,720.78 : 1,174,077.42 = 635,487.20 : x
  2. Step 2: Convert to fraction form
    850,720.78/1,174,077.42 = 635,487.20/x
  3. Step 3: Cross multiply
    850,720.78x = 1,174,077.42 × 635,487.20
  4. Step 4: Simplify right side
    850,720.78x = 746,111,172,219.02
  5. Step 5: Solve for x
    x = 746,111,172,219.02/850,720.78
  6. Step 6: Final answer
    x = 877,034.15

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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.