Home / 777,981.09-1,073,010.24-690,857.85

Finding the Fourth Proportional to 777,981.09, 1,073,010.24 and 690,857.85

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Solution

The fourth proportional to 777,981.09, 1,073,010.24 and 690,857.85 is: 952,847.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,981.09 : 1,073,010.24 = 690,857.85 : x
  2. Step 2: Convert to fraction form
    777,981.09/1,073,010.24 = 690,857.85/x
  3. Step 3: Cross multiply
    777,981.09x = 1,073,010.24 × 690,857.85
  4. Step 4: Simplify right side
    777,981.09x = 741,297,547,434.38
  5. Step 5: Solve for x
    x = 741,297,547,434.38/777,981.09
  6. Step 6: Final answer
    x = 952,847.77

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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.