Home / 689,431.14-1,034,147.01-216,153.39

Finding the Fourth Proportional to 689,431.14, 1,034,147.01 and 216,153.39

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Solution

The fourth proportional to 689,431.14, 1,034,147.01 and 216,153.39 is: 324,230.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,431.14 : 1,034,147.01 = 216,153.39 : x
  2. Step 2: Convert to fraction form
    689,431.14/1,034,147.01 = 216,153.39/x
  3. Step 3: Cross multiply
    689,431.14x = 1,034,147.01 × 216,153.39
  4. Step 4: Simplify right side
    689,431.14x = 223,534,381,969.86
  5. Step 5: Solve for x
    x = 223,534,381,969.86/689,431.14
  6. Step 6: Final answer
    x = 324,230.18

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Double scale
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Similar ratio
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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.