Home / 1,542,897.90-2,314,716.42-643,839.54

Finding the Fourth Proportional to 1,542,897.90, 2,314,716.42 and 643,839.54

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Solution

The fourth proportional to 1,542,897.90, 2,314,716.42 and 643,839.54 is: 965,913.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542,897.90 : 2,314,716.42 = 643,839.54 : x
  2. Step 2: Convert to fraction form
    1,542,897.90/2,314,716.42 = 643,839.54/x
  3. Step 3: Cross multiply
    1,542,897.90x = 2,314,716.42 × 643,839.54
  4. Step 4: Simplify right side
    1,542,897.90x = 1,490,305,955,083.25
  5. Step 5: Solve for x
    x = 1,490,305,955,083.25/1,542,897.90
  6. Step 6: Final answer
    x = 965,913.53

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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.