Home / 679,684.28-1,019,460.52-206,373.76

Finding the Fourth Proportional to 679,684.28, 1,019,460.52 and 206,373.76

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Solution

The fourth proportional to 679,684.28, 1,019,460.52 and 206,373.76 is: 309,540.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,684.28 : 1,019,460.52 = 206,373.76 : x
  2. Step 2: Convert to fraction form
    679,684.28/1,019,460.52 = 206,373.76/x
  3. Step 3: Cross multiply
    679,684.28x = 1,019,460.52 × 206,373.76
  4. Step 4: Simplify right side
    679,684.28x = 210,389,900,683.96
  5. Step 5: Solve for x
    x = 210,389,900,683.96/679,684.28
  6. Step 6: Final answer
    x = 309,540.63

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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.