Home / 890,234.79-1,335,353.85-216,316.66

Finding the Fourth Proportional to 890,234.79, 1,335,353.85 and 216,316.66

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Solution

The fourth proportional to 890,234.79, 1,335,353.85 and 216,316.66 is: 324,475.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,234.79 : 1,335,353.85 = 216,316.66 : x
  2. Step 2: Convert to fraction form
    890,234.79/1,335,353.85 = 216,316.66/x
  3. Step 3: Cross multiply
    890,234.79x = 1,335,353.85 × 216,316.66
  4. Step 4: Simplify right side
    890,234.79x = 288,859,284,750.14
  5. Step 5: Solve for x
    x = 288,859,284,750.14/890,234.79
  6. Step 6: Final answer
    x = 324,475.39

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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.