Home / 990,630.49-1,367,103.89-555,066.06

Finding the Fourth Proportional to 990,630.49, 1,367,103.89 and 555,066.06

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Solution

The fourth proportional to 990,630.49, 1,367,103.89 and 555,066.06 is: 766,010.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,630.49 : 1,367,103.89 = 555,066.06 : x
  2. Step 2: Convert to fraction form
    990,630.49/1,367,103.89 = 555,066.06/x
  3. Step 3: Cross multiply
    990,630.49x = 1,367,103.89 × 555,066.06
  4. Step 4: Simplify right side
    990,630.49x = 758,832,969,832.97
  5. Step 5: Solve for x
    x = 758,832,969,832.97/990,630.49
  6. Step 6: Final answer
    x = 766,010.11

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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.