Home / 1,438,475.52-2,146,775.40-1,279,047.36

Finding the Fourth Proportional to 1,438,475.52, 2,146,775.40 and 1,279,047.36

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Solution

The fourth proportional to 1,438,475.52, 2,146,775.40 and 1,279,047.36 is: 1,908,845.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,475.52 : 2,146,775.40 = 1,279,047.36 : x
  2. Step 2: Convert to fraction form
    1,438,475.52/2,146,775.40 = 1,279,047.36/x
  3. Step 3: Cross multiply
    1,438,475.52x = 2,146,775.40 × 1,279,047.36
  4. Step 4: Simplify right side
    1,438,475.52x = 2,745,827,407,882.94
  5. Step 5: Solve for x
    x = 2,745,827,407,882.94/1,438,475.52
  6. Step 6: Final answer
    x = 1,908,845.42

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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.