Home / 857,082.27-1,284,716.97-316,991.45

Finding the Fourth Proportional to 857,082.27, 1,284,716.97 and 316,991.45

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Solution

The fourth proportional to 857,082.27, 1,284,716.97 and 316,991.45 is: 475,151.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,082.27 : 1,284,716.97 = 316,991.45 : x
  2. Step 2: Convert to fraction form
    857,082.27/1,284,716.97 = 316,991.45/x
  3. Step 3: Cross multiply
    857,082.27x = 1,284,716.97 × 316,991.45
  4. Step 4: Simplify right side
    857,082.27x = 407,244,295,159.91
  5. Step 5: Solve for x
    x = 407,244,295,159.91/857,082.27
  6. Step 6: Final answer
    x = 475,151.93

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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.