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Finding the Fourth Proportional to 496,321.20, 744,481.80 and 384,346.80

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Solution

The fourth proportional to 496,321.20, 744,481.80 and 384,346.80 is: 576,520.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,321.20 : 744,481.80 = 384,346.80 : x
  2. Step 2: Convert to fraction form
    496,321.20/744,481.80 = 384,346.80/x
  3. Step 3: Cross multiply
    496,321.20x = 744,481.80 × 384,346.80
  4. Step 4: Simplify right side
    496,321.20x = 286,139,197,488.24
  5. Step 5: Solve for x
    x = 286,139,197,488.24/496,321.20
  6. Step 6: Final answer
    x = 576,520.20

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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.