Home / 928,200.42-1,392,301.85-254,287.64

Finding the Fourth Proportional to 928,200.42, 1,392,301.85 and 254,287.64

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Solution

The fourth proportional to 928,200.42, 1,392,301.85 and 254,287.64 is: 381,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,200.42 : 1,392,301.85 = 254,287.64 : x
  2. Step 2: Convert to fraction form
    928,200.42/1,392,301.85 = 254,287.64/x
  3. Step 3: Cross multiply
    928,200.42x = 1,392,301.85 × 254,287.64
  4. Step 4: Simplify right side
    928,200.42x = 354,045,153,813.45
  5. Step 5: Solve for x
    x = 354,045,153,813.45/928,200.42
  6. Step 6: Final answer
    x = 381,431.80

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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.