Home / 880,640.06-1,215,287.94-493,456.30

Finding the Fourth Proportional to 880,640.06, 1,215,287.94 and 493,456.30

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Solution

The fourth proportional to 880,640.06, 1,215,287.94 and 493,456.30 is: 680,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,640.06 : 1,215,287.94 = 493,456.30 : x
  2. Step 2: Convert to fraction form
    880,640.06/1,215,287.94 = 493,456.30/x
  3. Step 3: Cross multiply
    880,640.06x = 1,215,287.94 × 493,456.30
  4. Step 4: Simplify right side
    880,640.06x = 599,691,490,307.02
  5. Step 5: Solve for x
    x = 599,691,490,307.02/880,640.06
  6. Step 6: Final answer
    x = 680,972.30

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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.