Home / 1,394,988.13-1,925,293.72-851,439.78

Finding the Fourth Proportional to 1,394,988.13, 1,925,293.72 and 851,439.78

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Solution

The fourth proportional to 1,394,988.13, 1,925,293.72 and 851,439.78 is: 1,175,115.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,988.13 : 1,925,293.72 = 851,439.78 : x
  2. Step 2: Convert to fraction form
    1,394,988.13/1,925,293.72 = 851,439.78/x
  3. Step 3: Cross multiply
    1,394,988.13x = 1,925,293.72 × 851,439.78
  4. Step 4: Simplify right side
    1,394,988.13x = 1,639,271,660,989.52
  5. Step 5: Solve for x
    x = 1,639,271,660,989.52/1,394,988.13
  6. Step 6: Final answer
    x = 1,175,115.13

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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.