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Finding the Fourth Proportional to 548,812.35, 823,218.56 and 361,780.11

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Solution

The fourth proportional to 548,812.35, 823,218.56 and 361,780.11 is: 542,670.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,812.35 : 823,218.56 = 361,780.11 : x
  2. Step 2: Convert to fraction form
    548,812.35/823,218.56 = 361,780.11/x
  3. Step 3: Cross multiply
    548,812.35x = 823,218.56 × 361,780.11
  4. Step 4: Simplify right side
    548,812.35x = 297,824,099,381.94
  5. Step 5: Solve for x
    x = 297,824,099,381.94/548,812.35
  6. Step 6: Final answer
    x = 542,670.18

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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.