Home / 1,138,534.20-1,708,081.56-802,231.61

Finding the Fourth Proportional to 1,138,534.20, 1,708,081.56 and 802,231.61

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Solution

The fourth proportional to 1,138,534.20, 1,708,081.56 and 802,231.61 is: 1,203,544.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,534.20 : 1,708,081.56 = 802,231.61 : x
  2. Step 2: Convert to fraction form
    1,138,534.20/1,708,081.56 = 802,231.61/x
  3. Step 3: Cross multiply
    1,138,534.20x = 1,708,081.56 × 802,231.61
  4. Step 4: Simplify right side
    1,138,534.20x = 1,370,277,011,349.70
  5. Step 5: Solve for x
    x = 1,370,277,011,349.70/1,138,534.20
  6. Step 6: Final answer
    x = 1,203,544.88

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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.