Home / 747,974.96-1,121,962.43-187,009.46

Finding the Fourth Proportional to 747,974.96, 1,121,962.43 and 187,009.46

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Solution

The fourth proportional to 747,974.96, 1,121,962.43 and 187,009.46 is: 280,514.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,974.96 : 1,121,962.43 = 187,009.46 : x
  2. Step 2: Convert to fraction form
    747,974.96/1,121,962.43 = 187,009.46/x
  3. Step 3: Cross multiply
    747,974.96x = 1,121,962.43 × 187,009.46
  4. Step 4: Simplify right side
    747,974.96x = 209,817,582,564.78
  5. Step 5: Solve for x
    x = 209,817,582,564.78/747,974.96
  6. Step 6: Final answer
    x = 280,514.18

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Double scale
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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.