Home / 1,153,167.57-1,591,469.64-643,968.36

Finding the Fourth Proportional to 1,153,167.57, 1,591,469.64 and 643,968.36

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Solution

The fourth proportional to 1,153,167.57, 1,591,469.64 and 643,968.36 is: 888,731.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153,167.57 : 1,591,469.64 = 643,968.36 : x
  2. Step 2: Convert to fraction form
    1,153,167.57/1,591,469.64 = 643,968.36/x
  3. Step 3: Cross multiply
    1,153,167.57x = 1,591,469.64 × 643,968.36
  4. Step 4: Simplify right side
    1,153,167.57x = 1,024,856,094,060.59
  5. Step 5: Solve for x
    x = 1,024,856,094,060.59/1,153,167.57
  6. Step 6: Final answer
    x = 888,731.28

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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.