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Finding the Fourth Proportional to 646,909.53, 969,120.62 and 361,735.15

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Solution

The fourth proportional to 646,909.53, 969,120.62 and 361,735.15 is: 541,907.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,909.53 : 969,120.62 = 361,735.15 : x
  2. Step 2: Convert to fraction form
    646,909.53/969,120.62 = 361,735.15/x
  3. Step 3: Cross multiply
    646,909.53x = 969,120.62 × 361,735.15
  4. Step 4: Simplify right side
    646,909.53x = 350,564,989,968.82
  5. Step 5: Solve for x
    x = 350,564,989,968.82/646,909.53
  6. Step 6: Final answer
    x = 541,907.29

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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.