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Finding the Fourth Proportional to 787,060.22, 1,086,138.03 and 447,528.44

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Solution

The fourth proportional to 787,060.22, 1,086,138.03 and 447,528.44 is: 617,586.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,060.22 : 1,086,138.03 = 447,528.44 : x
  2. Step 2: Convert to fraction form
    787,060.22/1,086,138.03 = 447,528.44/x
  3. Step 3: Cross multiply
    787,060.22x = 1,086,138.03 × 447,528.44
  4. Step 4: Simplify right side
    787,060.22x = 486,077,658,190.57
  5. Step 5: Solve for x
    x = 486,077,658,190.57/787,060.22
  6. Step 6: Final answer
    x = 617,586.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.