Home / 1,270,425.65-1,753,189.11-689,648.63

Finding the Fourth Proportional to 1,270,425.65, 1,753,189.11 and 689,648.63

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Solution

The fourth proportional to 1,270,425.65, 1,753,189.11 and 689,648.63 is: 951,716.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,425.65 : 1,753,189.11 = 689,648.63 : x
  2. Step 2: Convert to fraction form
    1,270,425.65/1,753,189.11 = 689,648.63/x
  3. Step 3: Cross multiply
    1,270,425.65x = 1,753,189.11 × 689,648.63
  4. Step 4: Simplify right side
    1,270,425.65x = 1,209,084,459,076.47
  5. Step 5: Solve for x
    x = 1,209,084,459,076.47/1,270,425.65
  6. Step 6: Final answer
    x = 951,716.04

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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.