Home / 493,039.84-739,979.40-193,729.72

Finding the Fourth Proportional to 493,039.84, 739,979.40 and 193,729.72

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Solution

The fourth proportional to 493,039.84, 739,979.40 and 193,729.72 is: 290,759.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,039.84 : 739,979.40 = 193,729.72 : x
  2. Step 2: Convert to fraction form
    493,039.84/739,979.40 = 193,729.72/x
  3. Step 3: Cross multiply
    493,039.84x = 739,979.40 × 193,729.72
  4. Step 4: Simplify right side
    493,039.84x = 143,356,001,967.77
  5. Step 5: Solve for x
    x = 143,356,001,967.77/493,039.84
  6. Step 6: Final answer
    x = 290,759.47

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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.