Home / 679,864.50-1,019,818.35-206,553.98

Finding the Fourth Proportional to 679,864.50, 1,019,818.35 and 206,553.98

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Solution

The fourth proportional to 679,864.50, 1,019,818.35 and 206,553.98 is: 309,837.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,864.50 : 1,019,818.35 = 206,553.98 : x
  2. Step 2: Convert to fraction form
    679,864.50/1,019,818.35 = 206,553.98/x
  3. Step 3: Cross multiply
    679,864.50x = 1,019,818.35 × 206,553.98
  4. Step 4: Simplify right side
    679,864.50x = 210,647,539,069.53
  5. Step 5: Solve for x
    x = 210,647,539,069.53/679,864.50
  6. Step 6: Final answer
    x = 309,837.53

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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.