Home / 727,859.12-1,092,126.86-278,431.43

Finding the Fourth Proportional to 727,859.12, 1,092,126.86 and 278,431.43

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Solution

The fourth proportional to 727,859.12, 1,092,126.86 and 278,431.43 is: 417,776.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,859.12 : 1,092,126.86 = 278,431.43 : x
  2. Step 2: Convert to fraction form
    727,859.12/1,092,126.86 = 278,431.43/x
  3. Step 3: Cross multiply
    727,859.12x = 1,092,126.86 × 278,431.43
  4. Step 4: Simplify right side
    727,859.12x = 304,082,441,979.05
  5. Step 5: Solve for x
    x = 304,082,441,979.05/727,859.12
  6. Step 6: Final answer
    x = 417,776.51

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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.