Home / 857,863.90-1,286,781.27-325,373.14

Finding the Fourth Proportional to 857,863.90, 1,286,781.27 and 325,373.14

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Solution

The fourth proportional to 857,863.90, 1,286,781.27 and 325,373.14 is: 488,054.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,863.90 : 1,286,781.27 = 325,373.14 : x
  2. Step 2: Convert to fraction form
    857,863.90/1,286,781.27 = 325,373.14/x
  3. Step 3: Cross multiply
    857,863.90x = 1,286,781.27 × 325,373.14
  4. Step 4: Simplify right side
    857,863.90x = 418,684,062,313.09
  5. Step 5: Solve for x
    x = 418,684,062,313.09/857,863.90
  6. Step 6: Final answer
    x = 488,054.18

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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.