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Finding the Fourth Proportional to 543,254.83, 749,655.30 and 328,513.30

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Solution

The fourth proportional to 543,254.83, 749,655.30 and 328,513.30 is: 453,326.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,254.83 : 749,655.30 = 328,513.30 : x
  2. Step 2: Convert to fraction form
    543,254.83/749,655.30 = 328,513.30/x
  3. Step 3: Cross multiply
    543,254.83x = 749,655.30 × 328,513.30
  4. Step 4: Simplify right side
    543,254.83x = 246,271,736,465.49
  5. Step 5: Solve for x
    x = 246,271,736,465.49/543,254.83
  6. Step 6: Final answer
    x = 453,326.36

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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.