Home / 821,853.60-1,232,197.20-316,219.20

Finding the Fourth Proportional to 821,853.60, 1,232,197.20 and 316,219.20

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Solution

The fourth proportional to 821,853.60, 1,232,197.20 and 316,219.20 is: 474,104.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,853.60 : 1,232,197.20 = 316,219.20 : x
  2. Step 2: Convert to fraction form
    821,853.60/1,232,197.20 = 316,219.20/x
  3. Step 3: Cross multiply
    821,853.60x = 1,232,197.20 × 316,219.20
  4. Step 4: Simplify right side
    821,853.60x = 389,644,412,826.24
  5. Step 5: Solve for x
    x = 389,644,412,826.24/821,853.60
  6. Step 6: Final answer
    x = 474,104.41

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Double scale
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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.