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Finding the Fourth Proportional to 543,255.48, 815,683.01 and 303,838.47

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Solution

The fourth proportional to 543,255.48, 815,683.01 and 303,838.47 is: 456,205.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,255.48 : 815,683.01 = 303,838.47 : x
  2. Step 2: Convert to fraction form
    543,255.48/815,683.01 = 303,838.47/x
  3. Step 3: Cross multiply
    543,255.48x = 815,683.01 × 303,838.47
  4. Step 4: Simplify right side
    543,255.48x = 247,835,876,244.20
  5. Step 5: Solve for x
    x = 247,835,876,244.20/543,255.48
  6. Step 6: Final answer
    x = 456,205.02

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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.