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Finding the Fourth Proportional to 505,005.92, 758,517.60 and 315,802.88

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Solution

The fourth proportional to 505,005.92, 758,517.60 and 315,802.88 is: 474,335.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,005.92 : 758,517.60 = 315,802.88 : x
  2. Step 2: Convert to fraction form
    505,005.92/758,517.60 = 315,802.88/x
  3. Step 3: Cross multiply
    505,005.92x = 758,517.60 × 315,802.88
  4. Step 4: Simplify right side
    505,005.92x = 239,542,042,610.69
  5. Step 5: Solve for x
    x = 239,542,042,610.69/505,005.92
  6. Step 6: Final answer
    x = 474,335.12

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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.