Home / 1,149,150.96-1,585,586.88-665,687.16

Finding the Fourth Proportional to 1,149,150.96, 1,585,586.88 and 665,687.16

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Solution

The fourth proportional to 1,149,150.96, 1,585,586.88 and 665,687.16 is: 918,508.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,150.96 : 1,585,586.88 = 665,687.16 : x
  2. Step 2: Convert to fraction form
    1,149,150.96/1,585,586.88 = 665,687.16/x
  3. Step 3: Cross multiply
    1,149,150.96x = 1,585,586.88 × 665,687.16
  4. Step 4: Simplify right side
    1,149,150.96x = 1,055,504,827,080.46
  5. Step 5: Solve for x
    x = 1,055,504,827,080.46/1,149,150.96
  6. Step 6: Final answer
    x = 918,508.42

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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.