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Finding the Fourth Proportional to 529,532.16, 792,395.52 and 388,942.08

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Solution

The fourth proportional to 529,532.16, 792,395.52 and 388,942.08 is: 582,015.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,532.16 : 792,395.52 = 388,942.08 : x
  2. Step 2: Convert to fraction form
    529,532.16/792,395.52 = 388,942.08/x
  3. Step 3: Cross multiply
    529,532.16x = 792,395.52 × 388,942.08
  4. Step 4: Simplify right side
    529,532.16x = 308,195,961,731.48
  5. Step 5: Solve for x
    x = 308,195,961,731.48/529,532.16
  6. Step 6: Final answer
    x = 582,015.57

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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.