Home / 2,992,729.40-4,489,724.56-970,815.42

Finding the Fourth Proportional to 2,992,729.40, 4,489,724.56 and 970,815.42

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Solution

The fourth proportional to 2,992,729.40, 4,489,724.56 and 970,815.42 is: 1,456,427.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992,729.40 : 4,489,724.56 = 970,815.42 : x
  2. Step 2: Convert to fraction form
    2,992,729.40/4,489,724.56 = 970,815.42/x
  3. Step 3: Cross multiply
    2,992,729.40x = 4,489,724.56 × 970,815.42
  4. Step 4: Simplify right side
    2,992,729.40x = 4,358,693,834,400.72
  5. Step 5: Solve for x
    x = 4,358,693,834,400.72/2,992,729.40
  6. Step 6: Final answer
    x = 1,456,427.65

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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.