Home / 1,201,195.22-1,657,536.55-813,221.42

Finding the Fourth Proportional to 1,201,195.22, 1,657,536.55 and 813,221.42

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Solution

The fourth proportional to 1,201,195.22, 1,657,536.55 and 813,221.42 is: 1,122,169.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,195.22 : 1,657,536.55 = 813,221.42 : x
  2. Step 2: Convert to fraction form
    1,201,195.22/1,657,536.55 = 813,221.42/x
  3. Step 3: Cross multiply
    1,201,195.22x = 1,657,536.55 × 813,221.42
  4. Step 4: Simplify right side
    1,201,195.22x = 1,347,944,216,572.16
  5. Step 5: Solve for x
    x = 1,347,944,216,572.16/1,201,195.22
  6. Step 6: Final answer
    x = 1,122,169.15

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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.