Home / 1,386,517.80-2,079,776.70-826,645.80

Finding the Fourth Proportional to 1,386,517.80, 2,079,776.70 and 826,645.80

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Solution

The fourth proportional to 1,386,517.80, 2,079,776.70 and 826,645.80 is: 1,239,968.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,517.80 : 2,079,776.70 = 826,645.80 : x
  2. Step 2: Convert to fraction form
    1,386,517.80/2,079,776.70 = 826,645.80/x
  3. Step 3: Cross multiply
    1,386,517.80x = 2,079,776.70 × 826,645.80
  4. Step 4: Simplify right side
    1,386,517.80x = 1,719,238,673,992.86
  5. Step 5: Solve for x
    x = 1,719,238,673,992.86/1,386,517.80
  6. Step 6: Final answer
    x = 1,239,968.70

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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.