Home / 1,109,209.70-1,663,814.55-361,255.70

Finding the Fourth Proportional to 1,109,209.70, 1,663,814.55 and 361,255.70

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Solution

The fourth proportional to 1,109,209.70, 1,663,814.55 and 361,255.70 is: 541,883.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,209.70 : 1,663,814.55 = 361,255.70 : x
  2. Step 2: Convert to fraction form
    1,109,209.70/1,663,814.55 = 361,255.70/x
  3. Step 3: Cross multiply
    1,109,209.70x = 1,663,814.55 × 361,255.70
  4. Step 4: Simplify right side
    1,109,209.70x = 601,062,481,611.36
  5. Step 5: Solve for x
    x = 601,062,481,611.36/1,109,209.70
  6. Step 6: Final answer
    x = 541,883.54

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Double scale
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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.