Home / 928,185.79-1,392,279.77-254,272.88

Finding the Fourth Proportional to 928,185.79, 1,392,279.77 and 254,272.88

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Solution

The fourth proportional to 928,185.79, 1,392,279.77 and 254,272.88 is: 381,409.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,185.79 : 1,392,279.77 = 254,272.88 : x
  2. Step 2: Convert to fraction form
    928,185.79/1,392,279.77 = 254,272.88/x
  3. Step 3: Cross multiply
    928,185.79x = 1,392,279.77 × 254,272.88
  4. Step 4: Simplify right side
    928,185.79x = 354,018,983,168.45
  5. Step 5: Solve for x
    x = 354,018,983,168.45/928,185.79
  6. Step 6: Final answer
    x = 381,409.61

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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.