Home / 1,428,568.46-2,142,721.47-481,947.38

Finding the Fourth Proportional to 1,428,568.46, 2,142,721.47 and 481,947.38

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Solution

The fourth proportional to 1,428,568.46, 2,142,721.47 and 481,947.38 is: 722,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,568.46 : 2,142,721.47 = 481,947.38 : x
  2. Step 2: Convert to fraction form
    1,428,568.46/2,142,721.47 = 481,947.38/x
  3. Step 3: Cross multiply
    1,428,568.46x = 2,142,721.47 × 481,947.38
  4. Step 4: Simplify right side
    1,428,568.46x = 1,032,678,998,536.25
  5. Step 5: Solve for x
    x = 1,032,678,998,536.25/1,428,568.46
  6. Step 6: Final answer
    x = 722,876.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.