Home / 1,149,221.80-1,585,685.50-665,758.11

Finding the Fourth Proportional to 1,149,221.80, 1,585,685.50 and 665,758.11

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Solution

The fourth proportional to 1,149,221.80, 1,585,685.50 and 665,758.11 is: 918,606.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,221.80 : 1,585,685.50 = 665,758.11 : x
  2. Step 2: Convert to fraction form
    1,149,221.80/1,585,685.50 = 665,758.11/x
  3. Step 3: Cross multiply
    1,149,221.80x = 1,585,685.50 × 665,758.11
  4. Step 4: Simplify right side
    1,149,221.80x = 1,055,682,985,816.33
  5. Step 5: Solve for x
    x = 1,055,682,985,816.33/1,149,221.80
  6. Step 6: Final answer
    x = 918,606.82

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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.