Home / 679,387.20-1,019,084.40-206,073

Finding the Fourth Proportional to 679,387.20, 1,019,084.40 and 206,073

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Solution

The fourth proportional to 679,387.20, 1,019,084.40 and 206,073 is: 309,110.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,387.20 : 1,019,084.40 = 206,073 : x
  2. Step 2: Convert to fraction form
    679,387.20/1,019,084.40 = 206,073/x
  3. Step 3: Cross multiply
    679,387.20x = 1,019,084.40 × 206,073
  4. Step 4: Simplify right side
    679,387.20x = 210,005,779,561.20
  5. Step 5: Solve for x
    x = 210,005,779,561.20/679,387.20
  6. Step 6: Final answer
    x = 309,110.59

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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.