Home / 928,169.20-1,392,254.90-254,256.30

Finding the Fourth Proportional to 928,169.20, 1,392,254.90 and 254,256.30

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Solution

The fourth proportional to 928,169.20, 1,392,254.90 and 254,256.30 is: 381,384.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,169.20 : 1,392,254.90 = 254,256.30 : x
  2. Step 2: Convert to fraction form
    928,169.20/1,392,254.90 = 254,256.30/x
  3. Step 3: Cross multiply
    928,169.20x = 1,392,254.90 × 254,256.30
  4. Step 4: Simplify right side
    928,169.20x = 353,989,579,530.87
  5. Step 5: Solve for x
    x = 353,989,579,530.87/928,169.20
  6. Step 6: Final answer
    x = 381,384.75

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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.