Home / 990,139.46-1,366,158.29-560,419.61

Finding the Fourth Proportional to 990,139.46, 1,366,158.29 and 560,419.61

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Solution

The fourth proportional to 990,139.46, 1,366,158.29 and 560,419.61 is: 773,246.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,139.46 : 1,366,158.29 = 560,419.61 : x
  2. Step 2: Convert to fraction form
    990,139.46/1,366,158.29 = 560,419.61/x
  3. Step 3: Cross multiply
    990,139.46x = 1,366,158.29 × 560,419.61
  4. Step 4: Simplify right side
    990,139.46x = 765,621,886,447.18
  5. Step 5: Solve for x
    x = 765,621,886,447.18/990,139.46
  6. Step 6: Final answer
    x = 773,246.52

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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.