Home / 890,359.25-1,335,529.02-216,441.20

Finding the Fourth Proportional to 890,359.25, 1,335,529.02 and 216,441.20

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Solution

The fourth proportional to 890,359.25, 1,335,529.02 and 216,441.20 is: 324,659.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,359.25 : 1,335,529.02 = 216,441.20 : x
  2. Step 2: Convert to fraction form
    890,359.25/1,335,529.02 = 216,441.20/x
  3. Step 3: Cross multiply
    890,359.25x = 1,335,529.02 × 216,441.20
  4. Step 4: Simplify right side
    890,359.25x = 289,063,503,723.62
  5. Step 5: Solve for x
    x = 289,063,503,723.62/890,359.25
  6. Step 6: Final answer
    x = 324,659.40

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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.