Home / 679,720.60-1,019,514.88-206,410.06

Finding the Fourth Proportional to 679,720.60, 1,019,514.88 and 206,410.06

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Solution

The fourth proportional to 679,720.60, 1,019,514.88 and 206,410.06 is: 309,595.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,720.60 : 1,019,514.88 = 206,410.06 : x
  2. Step 2: Convert to fraction form
    679,720.60/1,019,514.88 = 206,410.06/x
  3. Step 3: Cross multiply
    679,720.60x = 1,019,514.88 × 206,410.06
  4. Step 4: Simplify right side
    679,720.60x = 210,438,127,551.69
  5. Step 5: Solve for x
    x = 210,438,127,551.69/679,720.60
  6. Step 6: Final answer
    x = 309,595.04

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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.