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Finding the Fourth Proportional to 529,540.16, 792,407.52 and 388,950.08

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Solution

The fourth proportional to 529,540.16, 792,407.52 and 388,950.08 is: 582,027.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,540.16 : 792,407.52 = 388,950.08 : x
  2. Step 2: Convert to fraction form
    529,540.16/792,407.52 = 388,950.08/x
  3. Step 3: Cross multiply
    529,540.16x = 792,407.52 × 388,950.08
  4. Step 4: Simplify right side
    529,540.16x = 308,206,968,296.60
  5. Step 5: Solve for x
    x = 308,206,968,296.60/529,540.16
  6. Step 6: Final answer
    x = 582,027.56

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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.