Home / 820,084.20-1,229,688.90-346,234.20

Finding the Fourth Proportional to 820,084.20, 1,229,688.90 and 346,234.20

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Solution

The fourth proportional to 820,084.20, 1,229,688.90 and 346,234.20 is: 519,166.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,084.20 : 1,229,688.90 = 346,234.20 : x
  2. Step 2: Convert to fraction form
    820,084.20/1,229,688.90 = 346,234.20/x
  3. Step 3: Cross multiply
    820,084.20x = 1,229,688.90 × 346,234.20
  4. Step 4: Simplify right side
    820,084.20x = 425,760,352,540.38
  5. Step 5: Solve for x
    x = 425,760,352,540.38/820,084.20
  6. Step 6: Final answer
    x = 519,166.63

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1.5x scale

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.