Home / 876,134.64-1,209,083.04-494,086.80

Finding the Fourth Proportional to 876,134.64, 1,209,083.04 and 494,086.80

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Solution

The fourth proportional to 876,134.64, 1,209,083.04 and 494,086.80 is: 681,849.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,134.64 : 1,209,083.04 = 494,086.80 : x
  2. Step 2: Convert to fraction form
    876,134.64/1,209,083.04 = 494,086.80/x
  3. Step 3: Cross multiply
    876,134.64x = 1,209,083.04 × 494,086.80
  4. Step 4: Simplify right side
    876,134.64x = 597,391,970,167.87
  5. Step 5: Solve for x
    x = 597,391,970,167.87/876,134.64
  6. Step 6: Final answer
    x = 681,849.50

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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.