Home / 820,895.40-1,231,466.22-288,322.56

Finding the Fourth Proportional to 820,895.40, 1,231,466.22 and 288,322.56

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Solution

The fourth proportional to 820,895.40, 1,231,466.22 and 288,322.56 is: 432,527.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,895.40 : 1,231,466.22 = 288,322.56 : x
  2. Step 2: Convert to fraction form
    820,895.40/1,231,466.22 = 288,322.56/x
  3. Step 3: Cross multiply
    820,895.40x = 1,231,466.22 × 288,322.56
  4. Step 4: Simplify right side
    820,895.40x = 355,059,493,103.92
  5. Step 5: Solve for x
    x = 355,059,493,103.92/820,895.40
  6. Step 6: Final answer
    x = 432,527.08

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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.