Home / 876,391.92-1,209,476.16-494,279.28

Finding the Fourth Proportional to 876,391.92, 1,209,476.16 and 494,279.28

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Solution

The fourth proportional to 876,391.92, 1,209,476.16 and 494,279.28 is: 682,136.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,391.92 : 1,209,476.16 = 494,279.28 : x
  2. Step 2: Convert to fraction form
    876,391.92/1,209,476.16 = 494,279.28/x
  3. Step 3: Cross multiply
    876,391.92x = 1,209,476.16 × 494,279.28
  4. Step 4: Simplify right side
    876,391.92x = 597,819,005,541.97
  5. Step 5: Solve for x
    x = 597,819,005,541.97/876,391.92
  6. Step 6: Final answer
    x = 682,136.60

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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.