Home / 820,016.20-1,229,586.90-346,166.20

Finding the Fourth Proportional to 820,016.20, 1,229,586.90 and 346,166.20

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Solution

The fourth proportional to 820,016.20, 1,229,586.90 and 346,166.20 is: 519,064.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,016.20 : 1,229,586.90 = 346,166.20 : x
  2. Step 2: Convert to fraction form
    820,016.20/1,229,586.90 = 346,166.20/x
  3. Step 3: Cross multiply
    820,016.20x = 1,229,586.90 × 346,166.20
  4. Step 4: Simplify right side
    820,016.20x = 425,641,424,742.78
  5. Step 5: Solve for x
    x = 425,641,424,742.78/820,016.20
  6. Step 6: Final answer
    x = 519,064.65

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Double scale
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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.