Home / 1,138,046.12-1,707,323.18-428,080.04

Finding the Fourth Proportional to 1,138,046.12, 1,707,323.18 and 428,080.04

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Solution

The fourth proportional to 1,138,046.12, 1,707,323.18 and 428,080.04 is: 642,215.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,046.12 : 1,707,323.18 = 428,080.04 : x
  2. Step 2: Convert to fraction form
    1,138,046.12/1,707,323.18 = 428,080.04/x
  3. Step 3: Cross multiply
    1,138,046.12x = 1,707,323.18 × 428,080.04
  4. Step 4: Simplify right side
    1,138,046.12x = 730,870,975,187.33
  5. Step 5: Solve for x
    x = 730,870,975,187.33/1,138,046.12
  6. Step 6: Final answer
    x = 642,215.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.