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Finding the Fourth Proportional to 543,255.33, 749,655.99 and 328,513.80

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Solution

The fourth proportional to 543,255.33, 749,655.99 and 328,513.80 is: 453,327.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,255.33 : 749,655.99 = 328,513.80 : x
  2. Step 2: Convert to fraction form
    543,255.33/749,655.99 = 328,513.80/x
  3. Step 3: Cross multiply
    543,255.33x = 749,655.99 × 328,513.80
  4. Step 4: Simplify right side
    543,255.33x = 246,272,337,967.66
  5. Step 5: Solve for x
    x = 246,272,337,967.66/543,255.33
  6. Step 6: Final answer
    x = 453,327.05

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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.