Home / 812,446.68-1,121,162.75-449,862.74

Finding the Fourth Proportional to 812,446.68, 1,121,162.75 and 449,862.74

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Solution

The fourth proportional to 812,446.68, 1,121,162.75 and 449,862.74 is: 620,803.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,446.68 : 1,121,162.75 = 449,862.74 : x
  2. Step 2: Convert to fraction form
    812,446.68/1,121,162.75 = 449,862.74/x
  3. Step 3: Cross multiply
    812,446.68x = 1,121,162.75 × 449,862.74
  4. Step 4: Simplify right side
    812,446.68x = 504,369,346,700.94
  5. Step 5: Solve for x
    x = 504,369,346,700.94/812,446.68
  6. Step 6: Final answer
    x = 620,803.01

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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.