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Finding the Fourth Proportional to 284,409.31, 426,639.48 and 74,049.07

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Solution

The fourth proportional to 284,409.31, 426,639.48 and 74,049.07 is: 111,080.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,409.31 : 426,639.48 = 74,049.07 : x
  2. Step 2: Convert to fraction form
    284,409.31/426,639.48 = 74,049.07/x
  3. Step 3: Cross multiply
    284,409.31x = 426,639.48 × 74,049.07
  4. Step 4: Simplify right side
    284,409.31x = 31,592,255,375.00
  5. Step 5: Solve for x
    x = 31,592,255,375.00/284,409.31
  6. Step 6: Final answer
    x = 111,080.24

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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.