Home / 800,936.40-1,201,404.60-239,970.90

Finding the Fourth Proportional to 800,936.40, 1,201,404.60 and 239,970.90

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Solution

The fourth proportional to 800,936.40, 1,201,404.60 and 239,970.90 is: 359,956.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,936.40 : 1,201,404.60 = 239,970.90 : x
  2. Step 2: Convert to fraction form
    800,936.40/1,201,404.60 = 239,970.90/x
  3. Step 3: Cross multiply
    800,936.40x = 1,201,404.60 × 239,970.90
  4. Step 4: Simplify right side
    800,936.40x = 288,302,143,126.14
  5. Step 5: Solve for x
    x = 288,302,143,126.14/800,936.40
  6. Step 6: Final answer
    x = 359,956.35

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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.