Home / 876,171.33-1,209,172.86-494,189.91

Finding the Fourth Proportional to 876,171.33, 1,209,172.86 and 494,189.91

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Solution

The fourth proportional to 876,171.33, 1,209,172.86 and 494,189.91 is: 682,013.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,171.33 : 1,209,172.86 = 494,189.91 : x
  2. Step 2: Convert to fraction form
    876,171.33/1,209,172.86 = 494,189.91/x
  3. Step 3: Cross multiply
    876,171.33x = 1,209,172.86 × 494,189.91
  4. Step 4: Simplify right side
    876,171.33x = 597,561,026,857.84
  5. Step 5: Solve for x
    x = 597,561,026,857.84/876,171.33
  6. Step 6: Final answer
    x = 682,013.90

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1.5x scale

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.