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Finding the Fourth Proportional to 492,689.35, 738,804.37 and 255,968.47

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Solution

The fourth proportional to 492,689.35, 738,804.37 and 255,968.47 is: 383,833.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,689.35 : 738,804.37 = 255,968.47 : x
  2. Step 2: Convert to fraction form
    492,689.35/738,804.37 = 255,968.47/x
  3. Step 3: Cross multiply
    492,689.35x = 738,804.37 × 255,968.47
  4. Step 4: Simplify right side
    492,689.35x = 189,110,624,218.21
  5. Step 5: Solve for x
    x = 189,110,624,218.21/492,689.35
  6. Step 6: Final answer
    x = 383,833.39

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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.