Home / 679,711.62-1,019,501.20-206,401.08

Finding the Fourth Proportional to 679,711.62, 1,019,501.20 and 206,401.08

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Solution

The fourth proportional to 679,711.62, 1,019,501.20 and 206,401.08 is: 309,581.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,711.62 : 1,019,501.20 = 206,401.08 : x
  2. Step 2: Convert to fraction form
    679,711.62/1,019,501.20 = 206,401.08/x
  3. Step 3: Cross multiply
    679,711.62x = 1,019,501.20 × 206,401.08
  4. Step 4: Simplify right side
    679,711.62x = 210,426,148,741.30
  5. Step 5: Solve for x
    x = 210,426,148,741.30/679,711.62
  6. Step 6: Final answer
    x = 309,581.51

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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.