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Finding the Fourth Proportional to 543,053.56, 749,425.90 and 301,328.50

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Solution

The fourth proportional to 543,053.56, 749,425.90 and 301,328.50 is: 415,839.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,053.56 : 749,425.90 = 301,328.50 : x
  2. Step 2: Convert to fraction form
    543,053.56/749,425.90 = 301,328.50/x
  3. Step 3: Cross multiply
    543,053.56x = 749,425.90 × 301,328.50
  4. Step 4: Simplify right side
    543,053.56x = 225,823,382,308.15
  5. Step 5: Solve for x
    x = 225,823,382,308.15/543,053.56
  6. Step 6: Final answer
    x = 415,839.98

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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.