Home / 992,100.46-1,488,147.36-272,442.78

Finding the Fourth Proportional to 992,100.46, 1,488,147.36 and 272,442.78

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Solution

The fourth proportional to 992,100.46, 1,488,147.36 and 272,442.78 is: 408,663.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,100.46 : 1,488,147.36 = 272,442.78 : x
  2. Step 2: Convert to fraction form
    992,100.46/1,488,147.36 = 272,442.78/x
  3. Step 3: Cross multiply
    992,100.46x = 1,488,147.36 × 272,442.78
  4. Step 4: Simplify right side
    992,100.46x = 405,435,003,808.06
  5. Step 5: Solve for x
    x = 405,435,003,808.06/992,100.46
  6. Step 6: Final answer
    x = 408,663.26

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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.