Home / 928,590.24-1,392,679.44-321,342.24

Finding the Fourth Proportional to 928,590.24, 1,392,679.44 and 321,342.24

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Solution

The fourth proportional to 928,590.24, 1,392,679.44 and 321,342.24 is: 481,942.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,590.24 : 1,392,679.44 = 321,342.24 : x
  2. Step 2: Convert to fraction form
    928,590.24/1,392,679.44 = 321,342.24/x
  3. Step 3: Cross multiply
    928,590.24x = 1,392,679.44 × 321,342.24
  4. Step 4: Simplify right side
    928,590.24x = 447,526,730,851.55
  5. Step 5: Solve for x
    x = 447,526,730,851.55/928,590.24
  6. Step 6: Final answer
    x = 481,942.10

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Half scale
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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.