Home / 1,397,820.03-1,929,150.45-777,686.56

Finding the Fourth Proportional to 1,397,820.03, 1,929,150.45 and 777,686.56

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Solution

The fourth proportional to 1,397,820.03, 1,929,150.45 and 777,686.56 is: 1,073,295.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,820.03 : 1,929,150.45 = 777,686.56 : x
  2. Step 2: Convert to fraction form
    1,397,820.03/1,929,150.45 = 777,686.56/x
  3. Step 3: Cross multiply
    1,397,820.03x = 1,929,150.45 × 777,686.56
  4. Step 4: Simplify right side
    1,397,820.03x = 1,500,274,377,182.95
  5. Step 5: Solve for x
    x = 1,500,274,377,182.95/1,397,820.03
  6. Step 6: Final answer
    x = 1,073,295.81

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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.