Home / 880,140.40-1,321,765.80-680,945.20

Finding the Fourth Proportional to 880,140.40, 1,321,765.80 and 680,945.20

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Solution

The fourth proportional to 880,140.40, 1,321,765.80 and 680,945.20 is: 1,022,621.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,140.40 : 1,321,765.80 = 680,945.20 : x
  2. Step 2: Convert to fraction form
    880,140.40/1,321,765.80 = 680,945.20/x
  3. Step 3: Cross multiply
    880,140.40x = 1,321,765.80 × 680,945.20
  4. Step 4: Simplify right side
    880,140.40x = 900,050,077,034.16
  5. Step 5: Solve for x
    x = 900,050,077,034.16/880,140.40
  6. Step 6: Final answer
    x = 1,022,621.02

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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.