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Finding the Fourth Proportional to 543,396.20, 749,910.96 and 301,682.07

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Solution

The fourth proportional to 543,396.20, 749,910.96 and 301,682.07 is: 416,334.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,396.20 : 749,910.96 = 301,682.07 : x
  2. Step 2: Convert to fraction form
    543,396.20/749,910.96 = 301,682.07/x
  3. Step 3: Cross multiply
    543,396.20x = 749,910.96 × 301,682.07
  4. Step 4: Simplify right side
    543,396.20x = 226,234,690,728.49
  5. Step 5: Solve for x
    x = 226,234,690,728.49/543,396.20
  6. Step 6: Final answer
    x = 416,334.70

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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.