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Finding the Fourth Proportional to 561,704.60, 842,556.90 and 404,240.60

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Solution

The fourth proportional to 561,704.60, 842,556.90 and 404,240.60 is: 606,360.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,704.60 : 842,556.90 = 404,240.60 : x
  2. Step 2: Convert to fraction form
    561,704.60/842,556.90 = 404,240.60/x
  3. Step 3: Cross multiply
    561,704.60x = 842,556.90 × 404,240.60
  4. Step 4: Simplify right side
    561,704.60x = 340,595,706,790.14
  5. Step 5: Solve for x
    x = 340,595,706,790.14/561,704.60
  6. Step 6: Final answer
    x = 606,360.90

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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.