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Finding the Fourth Proportional to 383,638.68, 574,782.48 and 341,889.66

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Solution

The fourth proportional to 383,638.68, 574,782.48 and 341,889.66 is: 512,232.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,638.68 : 574,782.48 = 341,889.66 : x
  2. Step 2: Convert to fraction form
    383,638.68/574,782.48 = 341,889.66/x
  3. Step 3: Cross multiply
    383,638.68x = 574,782.48 × 341,889.66
  4. Step 4: Simplify right side
    383,638.68x = 196,512,186,661.16
  5. Step 5: Solve for x
    x = 196,512,186,661.16/383,638.68
  6. Step 6: Final answer
    x = 512,232.46

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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.