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Finding the Fourth Proportional to 493,958.80, 739,901.40 and 272,083.60

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Solution

The fourth proportional to 493,958.80, 739,901.40 and 272,083.60 is: 407,554.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,958.80 : 739,901.40 = 272,083.60 : x
  2. Step 2: Convert to fraction form
    493,958.80/739,901.40 = 272,083.60/x
  3. Step 3: Cross multiply
    493,958.80x = 739,901.40 × 272,083.60
  4. Step 4: Simplify right side
    493,958.80x = 201,315,036,557.04
  5. Step 5: Solve for x
    x = 201,315,036,557.04/493,958.80
  6. Step 6: Final answer
    x = 407,554.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.