Home / 1,438,451.52-2,146,739.56-1,279,023.36

Finding the Fourth Proportional to 1,438,451.52, 2,146,739.56 and 1,279,023.36

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Solution

The fourth proportional to 1,438,451.52, 2,146,739.56 and 1,279,023.36 is: 1,908,809.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,451.52 : 2,146,739.56 = 1,279,023.36 : x
  2. Step 2: Convert to fraction form
    1,438,451.52/2,146,739.56 = 1,279,023.36/x
  3. Step 3: Cross multiply
    1,438,451.52x = 2,146,739.56 × 1,279,023.36
  4. Step 4: Simplify right side
    1,438,451.52x = 2,745,730,045,076.12
  5. Step 5: Solve for x
    x = 2,745,730,045,076.12/1,438,451.52
  6. Step 6: Final answer
    x = 1,908,809.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.