Home / 1,153,164.94-1,591,219.29-643,888.78

Finding the Fourth Proportional to 1,153,164.94, 1,591,219.29 and 643,888.78

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Solution

The fourth proportional to 1,153,164.94, 1,591,219.29 and 643,888.78 is: 888,483.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153,164.94 : 1,591,219.29 = 643,888.78 : x
  2. Step 2: Convert to fraction form
    1,153,164.94/1,591,219.29 = 643,888.78/x
  3. Step 3: Cross multiply
    1,153,164.94x = 1,591,219.29 × 643,888.78
  4. Step 4: Simplify right side
    1,153,164.94x = 1,024,568,247,350.57
  5. Step 5: Solve for x
    x = 1,024,568,247,350.57/1,153,164.94
  6. Step 6: Final answer
    x = 888,483.70

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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.