Home / 839,726.86-1,259,590.32-278,761.36

Finding the Fourth Proportional to 839,726.86, 1,259,590.32 and 278,761.36

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Solution

The fourth proportional to 839,726.86, 1,259,590.32 and 278,761.36 is: 418,142.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,726.86 : 1,259,590.32 = 278,761.36 : x
  2. Step 2: Convert to fraction form
    839,726.86/1,259,590.32 = 278,761.36/x
  3. Step 3: Cross multiply
    839,726.86x = 1,259,590.32 × 278,761.36
  4. Step 4: Simplify right side
    839,726.86x = 351,125,110,646.04
  5. Step 5: Solve for x
    x = 351,125,110,646.04/839,726.86
  6. Step 6: Final answer
    x = 418,142.05

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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.