Home / 1,221,781.75-1,680,079.92-1,060,356.54

Finding the Fourth Proportional to 1,221,781.75, 1,680,079.92 and 1,060,356.54

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Solution

The fourth proportional to 1,221,781.75, 1,680,079.92 and 1,060,356.54 is: 1,458,103.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,781.75 : 1,680,079.92 = 1,060,356.54 : x
  2. Step 2: Convert to fraction form
    1,221,781.75/1,680,079.92 = 1,060,356.54/x
  3. Step 3: Cross multiply
    1,221,781.75x = 1,680,079.92 × 1,060,356.54
  4. Step 4: Simplify right side
    1,221,781.75x = 1,781,483,730,894.68
  5. Step 5: Solve for x
    x = 1,781,483,730,894.68/1,221,781.75
  6. Step 6: Final answer
    x = 1,458,103.08

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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.