Home / 810,531.82-1,215,822.33-278,045.16

Finding the Fourth Proportional to 810,531.82, 1,215,822.33 and 278,045.16

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Solution

The fourth proportional to 810,531.82, 1,215,822.33 and 278,045.16 is: 417,076.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,531.82 : 1,215,822.33 = 278,045.16 : x
  2. Step 2: Convert to fraction form
    810,531.82/1,215,822.33 = 278,045.16/x
  3. Step 3: Cross multiply
    810,531.82x = 1,215,822.33 × 278,045.16
  4. Step 4: Simplify right side
    810,531.82x = 338,053,508,935.09
  5. Step 5: Solve for x
    x = 338,053,508,935.09/810,531.82
  6. Step 6: Final answer
    x = 417,076.17

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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.