Home / 1,278,941.74-1,917,277.86-469,139.88

Finding the Fourth Proportional to 1,278,941.74, 1,917,277.86 and 469,139.88

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Solution

The fourth proportional to 1,278,941.74, 1,917,277.86 and 469,139.88 is: 703,293.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,941.74 : 1,917,277.86 = 469,139.88 : x
  2. Step 2: Convert to fraction form
    1,278,941.74/1,917,277.86 = 469,139.88/x
  3. Step 3: Cross multiply
    1,278,941.74x = 1,917,277.86 × 469,139.88
  4. Step 4: Simplify right side
    1,278,941.74x = 899,471,502,821.36
  5. Step 5: Solve for x
    x = 899,471,502,821.36/1,278,941.74
  6. Step 6: Final answer
    x = 703,293.57

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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.