Home / 493,319.70-739,979.55-392,936.40

Finding the Fourth Proportional to 493,319.70, 739,979.55 and 392,936.40

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Solution

The fourth proportional to 493,319.70, 739,979.55 and 392,936.40 is: 589,404.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,319.70 : 739,979.55 = 392,936.40 : x
  2. Step 2: Convert to fraction form
    493,319.70/739,979.55 = 392,936.40/x
  3. Step 3: Cross multiply
    493,319.70x = 739,979.55 × 392,936.40
  4. Step 4: Simplify right side
    493,319.70x = 290,764,900,450.62
  5. Step 5: Solve for x
    x = 290,764,900,450.62/493,319.70
  6. Step 6: Final answer
    x = 589,404.60

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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.