Home / 679,513.79-1,019,276.82-206,199.14

Finding the Fourth Proportional to 679,513.79, 1,019,276.82 and 206,199.14

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Solution

The fourth proportional to 679,513.79, 1,019,276.82 and 206,199.14 is: 309,300.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,513.79 : 1,019,276.82 = 206,199.14 : x
  2. Step 2: Convert to fraction form
    679,513.79/1,019,276.82 = 206,199.14/x
  3. Step 3: Cross multiply
    679,513.79x = 1,019,276.82 × 206,199.14
  4. Step 4: Simplify right side
    679,513.79x = 210,173,998,609.55
  5. Step 5: Solve for x
    x = 210,173,998,609.55/679,513.79
  6. Step 6: Final answer
    x = 309,300.57

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Similar ratio
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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.