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Finding the Fourth Proportional to 543,400.45, 749,878.00 and 325,732.08

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Solution

The fourth proportional to 543,400.45, 749,878.00 and 325,732.08 is: 449,501.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,400.45 : 749,878.00 = 325,732.08 : x
  2. Step 2: Convert to fraction form
    543,400.45/749,878.00 = 325,732.08/x
  3. Step 3: Cross multiply
    543,400.45x = 749,878.00 × 325,732.08
  4. Step 4: Simplify right side
    543,400.45x = 244,259,324,516.20
  5. Step 5: Solve for x
    x = 244,259,324,516.20/543,400.45
  6. Step 6: Final answer
    x = 449,501.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.