Home / 990,639.66-1,367,227.14-555,086.46

Finding the Fourth Proportional to 990,639.66, 1,367,227.14 and 555,086.46

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Solution

The fourth proportional to 990,639.66, 1,367,227.14 and 555,086.46 is: 766,100.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,639.66 : 1,367,227.14 = 555,086.46 : x
  2. Step 2: Convert to fraction form
    990,639.66/1,367,227.14 = 555,086.46/x
  3. Step 3: Cross multiply
    990,639.66x = 1,367,227.14 × 555,086.46
  4. Step 4: Simplify right side
    990,639.66x = 758,929,273,158.52
  5. Step 5: Solve for x
    x = 758,929,273,158.52/990,639.66
  6. Step 6: Final answer
    x = 766,100.23

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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.