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Finding the Fourth Proportional to 543,833.20, 815,749.80 and 488,720.80

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Solution

The fourth proportional to 543,833.20, 815,749.80 and 488,720.80 is: 733,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,833.20 : 815,749.80 = 488,720.80 : x
  2. Step 2: Convert to fraction form
    543,833.20/815,749.80 = 488,720.80/x
  3. Step 3: Cross multiply
    543,833.20x = 815,749.80 × 488,720.80
  4. Step 4: Simplify right side
    543,833.20x = 398,673,894,855.84
  5. Step 5: Solve for x
    x = 398,673,894,855.84/543,833.20
  6. Step 6: Final answer
    x = 733,081.20

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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.