Home / 928,185.10-1,392,278.76-254,272.21

Finding the Fourth Proportional to 928,185.10, 1,392,278.76 and 254,272.21

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Solution

The fourth proportional to 928,185.10, 1,392,278.76 and 254,272.21 is: 381,408.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,185.10 : 1,392,278.76 = 254,272.21 : x
  2. Step 2: Convert to fraction form
    928,185.10/1,392,278.76 = 254,272.21/x
  3. Step 3: Cross multiply
    928,185.10x = 1,392,278.76 × 254,272.21
  4. Step 4: Simplify right side
    928,185.10x = 354,017,797,241.26
  5. Step 5: Solve for x
    x = 354,017,797,241.26/928,185.10
  6. Step 6: Final answer
    x = 381,408.62

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Double scale
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Similar ratio
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1.5x scale

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.