Home / 1,138,306.40-1,570,801.16-628,975.97

Finding the Fourth Proportional to 1,138,306.40, 1,570,801.16 and 628,975.97

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Solution

The fourth proportional to 1,138,306.40, 1,570,801.16 and 628,975.97 is: 867,952.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,306.40 : 1,570,801.16 = 628,975.97 : x
  2. Step 2: Convert to fraction form
    1,138,306.40/1,570,801.16 = 628,975.97/x
  3. Step 3: Cross multiply
    1,138,306.40x = 1,570,801.16 × 628,975.97
  4. Step 4: Simplify right side
    1,138,306.40x = 987,996,179,359.07
  5. Step 5: Solve for x
    x = 987,996,179,359.07/1,138,306.40
  6. Step 6: Final answer
    x = 867,952.76

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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.