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Finding the Fourth Proportional to 679,575.54, 1,019,366.56 and 206,265

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Solution

The fourth proportional to 679,575.54, 1,019,366.56 and 206,265 is: 309,398.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,575.54 : 1,019,366.56 = 206,265 : x
  2. Step 2: Convert to fraction form
    679,575.54/1,019,366.56 = 206,265/x
  3. Step 3: Cross multiply
    679,575.54x = 1,019,366.56 × 206,265
  4. Step 4: Simplify right side
    679,575.54x = 210,259,643,498.40
  5. Step 5: Solve for x
    x = 210,259,643,498.40/679,575.54
  6. Step 6: Final answer
    x = 309,398.49

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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.