Home / 693,402.40-1,040,103.60-320,154.40

Finding the Fourth Proportional to 693,402.40, 1,040,103.60 and 320,154.40

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Solution

The fourth proportional to 693,402.40, 1,040,103.60 and 320,154.40 is: 480,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,402.40 : 1,040,103.60 = 320,154.40 : x
  2. Step 2: Convert to fraction form
    693,402.40/1,040,103.60 = 320,154.40/x
  3. Step 3: Cross multiply
    693,402.40x = 1,040,103.60 × 320,154.40
  4. Step 4: Simplify right side
    693,402.40x = 332,993,743,995.84
  5. Step 5: Solve for x
    x = 332,993,743,995.84/693,402.40
  6. Step 6: Final answer
    x = 480,231.60

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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.