Home / 679,645.49-1,019,402.42-206,334.95

Finding the Fourth Proportional to 679,645.49, 1,019,402.42 and 206,334.95

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Solution

The fourth proportional to 679,645.49, 1,019,402.42 and 206,334.95 is: 309,482.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,645.49 : 1,019,402.42 = 206,334.95 : x
  2. Step 2: Convert to fraction form
    679,645.49/1,019,402.42 = 206,334.95/x
  3. Step 3: Cross multiply
    679,645.49x = 1,019,402.42 × 206,334.95
  4. Step 4: Simplify right side
    679,645.49x = 210,338,341,231.89
  5. Step 5: Solve for x
    x = 210,338,341,231.89/679,645.49
  6. Step 6: Final answer
    x = 309,482.44

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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.