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Finding the Fourth Proportional to 505,823.92, 758,081.76 and 378,464.92

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Solution

The fourth proportional to 505,823.92, 758,081.76 and 378,464.92 is: 567,207.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,823.92 : 758,081.76 = 378,464.92 : x
  2. Step 2: Convert to fraction form
    505,823.92/758,081.76 = 378,464.92/x
  3. Step 3: Cross multiply
    505,823.92x = 758,081.76 × 378,464.92
  4. Step 4: Simplify right side
    505,823.92x = 286,907,352,651.86
  5. Step 5: Solve for x
    x = 286,907,352,651.86/505,823.92
  6. Step 6: Final answer
    x = 567,207.96

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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.