Home / 693,351.40-1,040,027.10-320,103.40

Finding the Fourth Proportional to 693,351.40, 1,040,027.10 and 320,103.40

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Solution

The fourth proportional to 693,351.40, 1,040,027.10 and 320,103.40 is: 480,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,351.40 : 1,040,027.10 = 320,103.40 : x
  2. Step 2: Convert to fraction form
    693,351.40/1,040,027.10 = 320,103.40/x
  3. Step 3: Cross multiply
    693,351.40x = 1,040,027.10 × 320,103.40
  4. Step 4: Simplify right side
    693,351.40x = 332,916,210,802.14
  5. Step 5: Solve for x
    x = 332,916,210,802.14/693,351.40
  6. Step 6: Final answer
    x = 480,155.10

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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.