Home / 815,315.71-1,223,190.45-282,835.87

Finding the Fourth Proportional to 815,315.71, 1,223,190.45 and 282,835.87

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Solution

The fourth proportional to 815,315.71, 1,223,190.45 and 282,835.87 is: 424,329.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,315.71 : 1,223,190.45 = 282,835.87 : x
  2. Step 2: Convert to fraction form
    815,315.71/1,223,190.45 = 282,835.87/x
  3. Step 3: Cross multiply
    815,315.71x = 1,223,190.45 × 282,835.87
  4. Step 4: Simplify right side
    815,315.71x = 345,962,135,101.44
  5. Step 5: Solve for x
    x = 345,962,135,101.44/815,315.71
  6. Step 6: Final answer
    x = 424,329.04

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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.