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Finding the Fourth Proportional to 492,345.62, 738,611.07 and 339,118.32

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Solution

The fourth proportional to 492,345.62, 738,611.07 and 339,118.32 is: 508,741.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,345.62 : 738,611.07 = 339,118.32 : x
  2. Step 2: Convert to fraction form
    492,345.62/738,611.07 = 339,118.32/x
  3. Step 3: Cross multiply
    492,345.62x = 738,611.07 × 339,118.32
  4. Step 4: Simplify right side
    492,345.62x = 250,476,545,191.80
  5. Step 5: Solve for x
    x = 250,476,545,191.80/492,345.62
  6. Step 6: Final answer
    x = 508,741.29

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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.