Home / 1,278,977.72-1,764,987.48-706,016.52

Finding the Fourth Proportional to 1,278,977.72, 1,764,987.48 and 706,016.52

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Solution

The fourth proportional to 1,278,977.72, 1,764,987.48 and 706,016.52 is: 974,301.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,977.72 : 1,764,987.48 = 706,016.52 : x
  2. Step 2: Convert to fraction form
    1,278,977.72/1,764,987.48 = 706,016.52/x
  3. Step 3: Cross multiply
    1,278,977.72x = 1,764,987.48 × 706,016.52
  4. Step 4: Simplify right side
    1,278,977.72x = 1,246,110,318,473.17
  5. Step 5: Solve for x
    x = 1,246,110,318,473.17/1,278,977.72
  6. Step 6: Final answer
    x = 974,301.82

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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.