Home / 648,451.78-972,808.89-227,760.46

Finding the Fourth Proportional to 648,451.78, 972,808.89 and 227,760.46

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Solution

The fourth proportional to 648,451.78, 972,808.89 and 227,760.46 is: 341,686.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,451.78 : 972,808.89 = 227,760.46 : x
  2. Step 2: Convert to fraction form
    648,451.78/972,808.89 = 227,760.46/x
  3. Step 3: Cross multiply
    648,451.78x = 972,808.89 × 227,760.46
  4. Step 4: Simplify right side
    648,451.78x = 221,567,400,278.49
  5. Step 5: Solve for x
    x = 221,567,400,278.49/648,451.78
  6. Step 6: Final answer
    x = 341,686.78

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Similar ratio
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1.5x scale

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.