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Finding the Fourth Proportional to 543,675.08, 749,969.24 and 505,187.07

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Solution

The fourth proportional to 543,675.08, 749,969.24 and 505,187.07 is: 696,877.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,675.08 : 749,969.24 = 505,187.07 : x
  2. Step 2: Convert to fraction form
    543,675.08/749,969.24 = 505,187.07/x
  3. Step 3: Cross multiply
    543,675.08x = 749,969.24 × 505,187.07
  4. Step 4: Simplify right side
    543,675.08x = 378,874,762,945.73
  5. Step 5: Solve for x
    x = 378,874,762,945.73/543,675.08
  6. Step 6: Final answer
    x = 696,877.19

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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.