Home / 815,314.71-1,223,188.95-282,834.87

Finding the Fourth Proportional to 815,314.71, 1,223,188.95 and 282,834.87

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Solution

The fourth proportional to 815,314.71, 1,223,188.95 and 282,834.87 is: 424,327.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,314.71 : 1,223,188.95 = 282,834.87 : x
  2. Step 2: Convert to fraction form
    815,314.71/1,223,188.95 = 282,834.87/x
  3. Step 3: Cross multiply
    815,314.71x = 1,223,188.95 × 282,834.87
  4. Step 4: Simplify right side
    815,314.71x = 345,960,487,658.69
  5. Step 5: Solve for x
    x = 345,960,487,658.69/815,314.71
  6. Step 6: Final answer
    x = 424,327.54

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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.