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Finding the Fourth Proportional to 496,995.60, 743,743.80 and 455,005.20

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Solution

The fourth proportional to 496,995.60, 743,743.80 and 455,005.20 is: 680,906.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,995.60 : 743,743.80 = 455,005.20 : x
  2. Step 2: Convert to fraction form
    496,995.60/743,743.80 = 455,005.20/x
  3. Step 3: Cross multiply
    496,995.60x = 743,743.80 × 455,005.20
  4. Step 4: Simplify right side
    496,995.60x = 338,407,296,467.76
  5. Step 5: Solve for x
    x = 338,407,296,467.76/496,995.60
  6. Step 6: Final answer
    x = 680,906.02

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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.