Home / 1,144,128.87-1,578,843.42-627,871.11

Finding the Fourth Proportional to 1,144,128.87, 1,578,843.42 and 627,871.11

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Solution

The fourth proportional to 1,144,128.87, 1,578,843.42 and 627,871.11 is: 866,432.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144,128.87 : 1,578,843.42 = 627,871.11 : x
  2. Step 2: Convert to fraction form
    1,144,128.87/1,578,843.42 = 627,871.11/x
  3. Step 3: Cross multiply
    1,144,128.87x = 1,578,843.42 × 627,871.11
  4. Step 4: Simplify right side
    1,144,128.87x = 991,310,170,631.60
  5. Step 5: Solve for x
    x = 991,310,170,631.60/1,144,128.87
  6. Step 6: Final answer
    x = 866,432.27

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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.