Home / 679,731.22-1,019,598.45-206,420.14

Finding the Fourth Proportional to 679,731.22, 1,019,598.45 and 206,420.14

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Solution

The fourth proportional to 679,731.22, 1,019,598.45 and 206,420.14 is: 309,630.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,731.22 : 1,019,598.45 = 206,420.14 : x
  2. Step 2: Convert to fraction form
    679,731.22/1,019,598.45 = 206,420.14/x
  3. Step 3: Cross multiply
    679,731.22x = 1,019,598.45 × 206,420.14
  4. Step 4: Simplify right side
    679,731.22x = 210,465,654,792.78
  5. Step 5: Solve for x
    x = 210,465,654,792.78/679,731.22
  6. Step 6: Final answer
    x = 309,630.70

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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.