Home / 771,704.40-1,157,556.60-210,738.90

Finding the Fourth Proportional to 771,704.40, 1,157,556.60 and 210,738.90

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Solution

The fourth proportional to 771,704.40, 1,157,556.60 and 210,738.90 is: 316,108.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,704.40 : 1,157,556.60 = 210,738.90 : x
  2. Step 2: Convert to fraction form
    771,704.40/1,157,556.60 = 210,738.90/x
  3. Step 3: Cross multiply
    771,704.40x = 1,157,556.60 × 210,738.90
  4. Step 4: Simplify right side
    771,704.40x = 243,942,204,571.74
  5. Step 5: Solve for x
    x = 243,942,204,571.74/771,704.40
  6. Step 6: Final answer
    x = 316,108.35

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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.