Home / 679,724.74-1,019,520.99-206,414.20

Finding the Fourth Proportional to 679,724.74, 1,019,520.99 and 206,414.20

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Solution

The fourth proportional to 679,724.74, 1,019,520.99 and 206,414.20 is: 309,601.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,724.74 : 1,019,520.99 = 206,414.20 : x
  2. Step 2: Convert to fraction form
    679,724.74/1,019,520.99 = 206,414.20/x
  3. Step 3: Cross multiply
    679,724.74x = 1,019,520.99 × 206,414.20
  4. Step 4: Simplify right side
    679,724.74x = 210,443,609,534.06
  5. Step 5: Solve for x
    x = 210,443,609,534.06/679,724.74
  6. Step 6: Final answer
    x = 309,601.22

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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.