Home / 1,126,199.12-1,554,179.88-642,754.57

Finding the Fourth Proportional to 1,126,199.12, 1,554,179.88 and 642,754.57

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Solution

The fourth proportional to 1,126,199.12, 1,554,179.88 and 642,754.57 is: 887,015.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,199.12 : 1,554,179.88 = 642,754.57 : x
  2. Step 2: Convert to fraction form
    1,126,199.12/1,554,179.88 = 642,754.57/x
  3. Step 3: Cross multiply
    1,126,199.12x = 1,554,179.88 × 642,754.57
  4. Step 4: Simplify right side
    1,126,199.12x = 998,956,210,290.82
  5. Step 5: Solve for x
    x = 998,956,210,290.82/1,126,199.12
  6. Step 6: Final answer
    x = 887,015.62

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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.