Home / 1,428,372.02-1,972,076.77-885,084.34

Finding the Fourth Proportional to 1,428,372.02, 1,972,076.77 and 885,084.34

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Solution

The fourth proportional to 1,428,372.02, 1,972,076.77 and 885,084.34 is: 1,221,988.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,372.02 : 1,972,076.77 = 885,084.34 : x
  2. Step 2: Convert to fraction form
    1,428,372.02/1,972,076.77 = 885,084.34/x
  3. Step 3: Cross multiply
    1,428,372.02x = 1,972,076.77 × 885,084.34
  4. Step 4: Simplify right side
    1,428,372.02x = 1,745,454,266,404.78
  5. Step 5: Solve for x
    x = 1,745,454,266,404.78/1,428,372.02
  6. Step 6: Final answer
    x = 1,221,988.56

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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.