Home / 812,980.92-1,121,711.02-468,922.04

Finding the Fourth Proportional to 812,980.92, 1,121,711.02 and 468,922.04

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Solution

The fourth proportional to 812,980.92, 1,121,711.02 and 468,922.04 is: 646,995.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,980.92 : 1,121,711.02 = 468,922.04 : x
  2. Step 2: Convert to fraction form
    812,980.92/1,121,711.02 = 468,922.04/x
  3. Step 3: Cross multiply
    812,980.92x = 1,121,711.02 × 468,922.04
  4. Step 4: Simplify right side
    812,980.92x = 525,995,019,788.88
  5. Step 5: Solve for x
    x = 525,995,019,788.88/812,980.92
  6. Step 6: Final answer
    x = 646,995.53

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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.