Home / 751,306.66-1,036,959.71-690,781.43

Finding the Fourth Proportional to 751,306.66, 1,036,959.71 and 690,781.43

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Solution

The fourth proportional to 751,306.66, 1,036,959.71 and 690,781.43 is: 953,422.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,306.66 : 1,036,959.71 = 690,781.43 : x
  2. Step 2: Convert to fraction form
    751,306.66/1,036,959.71 = 690,781.43/x
  3. Step 3: Cross multiply
    751,306.66x = 1,036,959.71 × 690,781.43
  4. Step 4: Simplify right side
    751,306.66x = 716,312,510,464.68
  5. Step 5: Solve for x
    x = 716,312,510,464.68/751,306.66
  6. Step 6: Final answer
    x = 953,422.29

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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.