Home / 1,143,381.49-1,577,868.74-627,139.60

Finding the Fourth Proportional to 1,143,381.49, 1,577,868.74 and 627,139.60

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Solution

The fourth proportional to 1,143,381.49, 1,577,868.74 and 627,139.60 is: 865,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,381.49 : 1,577,868.74 = 627,139.60 : x
  2. Step 2: Convert to fraction form
    1,143,381.49/1,577,868.74 = 627,139.60/x
  3. Step 3: Cross multiply
    1,143,381.49x = 1,577,868.74 × 627,139.60
  4. Step 4: Simplify right side
    1,143,381.49x = 989,543,970,456.10
  5. Step 5: Solve for x
    x = 989,543,970,456.10/1,143,381.49
  6. Step 6: Final answer
    x = 865,453.90

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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.