Home / 857,862.90-1,286,779.77-325,372.14

Finding the Fourth Proportional to 857,862.90, 1,286,779.77 and 325,372.14

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Solution

The fourth proportional to 857,862.90, 1,286,779.77 and 325,372.14 is: 488,052.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,862.90 : 1,286,779.77 = 325,372.14 : x
  2. Step 2: Convert to fraction form
    857,862.90/1,286,779.77 = 325,372.14/x
  3. Step 3: Cross multiply
    857,862.90x = 1,286,779.77 × 325,372.14
  4. Step 4: Simplify right side
    857,862.90x = 418,682,287,473.61
  5. Step 5: Solve for x
    x = 418,682,287,473.61/857,862.90
  6. Step 6: Final answer
    x = 488,052.68

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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.