Home / 991,980.12-1,369,059.19-584,119.91

Finding the Fourth Proportional to 991,980.12, 1,369,059.19 and 584,119.91

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Solution

The fourth proportional to 991,980.12, 1,369,059.19 and 584,119.91 is: 806,160.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,980.12 : 1,369,059.19 = 584,119.91 : x
  2. Step 2: Convert to fraction form
    991,980.12/1,369,059.19 = 584,119.91/x
  3. Step 3: Cross multiply
    991,980.12x = 1,369,059.19 × 584,119.91
  4. Step 4: Simplify right side
    991,980.12x = 799,694,730,847.47
  5. Step 5: Solve for x
    x = 799,694,730,847.47/991,980.12
  6. Step 6: Final answer
    x = 806,160.04

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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.