Home / 820,073.18-1,230,197.22-346,806.38

Finding the Fourth Proportional to 820,073.18, 1,230,197.22 and 346,806.38

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Solution

The fourth proportional to 820,073.18, 1,230,197.22 and 346,806.38 is: 520,246.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,073.18 : 1,230,197.22 = 346,806.38 : x
  2. Step 2: Convert to fraction form
    820,073.18/1,230,197.22 = 346,806.38/x
  3. Step 3: Cross multiply
    820,073.18x = 1,230,197.22 × 346,806.38
  4. Step 4: Simplify right side
    820,073.18x = 426,640,244,554.26
  5. Step 5: Solve for x
    x = 426,640,244,554.26/820,073.18
  6. Step 6: Final answer
    x = 520,246.55

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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.