Home / 2,279,394.82-3,145,642.54-1,299,478.76

Finding the Fourth Proportional to 2,279,394.82, 3,145,642.54 and 1,299,478.76

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Solution

The fourth proportional to 2,279,394.82, 3,145,642.54 and 1,299,478.76 is: 1,793,324.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279,394.82 : 3,145,642.54 = 1,299,478.76 : x
  2. Step 2: Convert to fraction form
    2,279,394.82/3,145,642.54 = 1,299,478.76/x
  3. Step 3: Cross multiply
    2,279,394.82x = 3,145,642.54 × 1,299,478.76
  4. Step 4: Simplify right side
    2,279,394.82x = 4,087,695,667,282.45
  5. Step 5: Solve for x
    x = 4,087,695,667,282.45/2,279,394.82
  6. Step 6: Final answer
    x = 1,793,324.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.