Home / 812,298.43-1,218,634.53-272,626.30

Finding the Fourth Proportional to 812,298.43, 1,218,634.53 and 272,626.30

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Solution

The fourth proportional to 812,298.43, 1,218,634.53 and 272,626.30 is: 409,002.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,298.43 : 1,218,634.53 = 272,626.30 : x
  2. Step 2: Convert to fraction form
    812,298.43/1,218,634.53 = 272,626.30/x
  3. Step 3: Cross multiply
    812,298.43x = 1,218,634.53 × 272,626.30
  4. Step 4: Simplify right side
    812,298.43x = 332,231,822,966.14
  5. Step 5: Solve for x
    x = 332,231,822,966.14/812,298.43
  6. Step 6: Final answer
    x = 409,002.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.