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Finding the Fourth Proportional to 890,677.66, 1,336,005.11 and 216,760.12

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Solution

The fourth proportional to 890,677.66, 1,336,005.11 and 216,760.12 is: 325,137.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,677.66 : 1,336,005.11 = 216,760.12 : x
  2. Step 2: Convert to fraction form
    890,677.66/1,336,005.11 = 216,760.12/x
  3. Step 3: Cross multiply
    890,677.66x = 1,336,005.11 × 216,760.12
  4. Step 4: Simplify right side
    890,677.66x = 289,592,627,964.21
  5. Step 5: Solve for x
    x = 289,592,627,964.21/890,677.66
  6. Step 6: Final answer
    x = 325,137.41

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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.