Home / 1,298,417.27-1,791,908.61-717,627.90

Finding the Fourth Proportional to 1,298,417.27, 1,791,908.61 and 717,627.90

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Solution

The fourth proportional to 1,298,417.27, 1,791,908.61 and 717,627.90 is: 990,377.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,417.27 : 1,791,908.61 = 717,627.90 : x
  2. Step 2: Convert to fraction form
    1,298,417.27/1,791,908.61 = 717,627.90/x
  3. Step 3: Cross multiply
    1,298,417.27x = 1,791,908.61 × 717,627.90
  4. Step 4: Simplify right side
    1,298,417.27x = 1,285,923,612,786.22
  5. Step 5: Solve for x
    x = 1,285,923,612,786.22/1,298,417.27
  6. Step 6: Final answer
    x = 990,377.78

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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.