Home / 1,218,361.91-1,680,323.13-913,166.06

Finding the Fourth Proportional to 1,218,361.91, 1,680,323.13 and 913,166.06

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Solution

The fourth proportional to 1,218,361.91, 1,680,323.13 and 913,166.06 is: 1,259,407.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,361.91 : 1,680,323.13 = 913,166.06 : x
  2. Step 2: Convert to fraction form
    1,218,361.91/1,680,323.13 = 913,166.06/x
  3. Step 3: Cross multiply
    1,218,361.91x = 1,680,323.13 × 913,166.06
  4. Step 4: Simplify right side
    1,218,361.91x = 1,534,414,043,747.35
  5. Step 5: Solve for x
    x = 1,534,414,043,747.35/1,218,361.91
  6. Step 6: Final answer
    x = 1,259,407.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.