Home / 1,147,340.20-1,721,010.30-727,090.60

Finding the Fourth Proportional to 1,147,340.20, 1,721,010.30 and 727,090.60

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Solution

The fourth proportional to 1,147,340.20, 1,721,010.30 and 727,090.60 is: 1,090,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,340.20 : 1,721,010.30 = 727,090.60 : x
  2. Step 2: Convert to fraction form
    1,147,340.20/1,721,010.30 = 727,090.60/x
  3. Step 3: Cross multiply
    1,147,340.20x = 1,721,010.30 × 727,090.60
  4. Step 4: Simplify right side
    1,147,340.20x = 1,251,330,411,633.18
  5. Step 5: Solve for x
    x = 1,251,330,411,633.18/1,147,340.20
  6. Step 6: Final answer
    x = 1,090,635.90

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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.