Home / 493,012-739,628.78-156,072.85

Finding the Fourth Proportional to 493,012, 739,628.78 and 156,072.85

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Solution

The fourth proportional to 493,012, 739,628.78 and 156,072.85 is: 234,144.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,012 : 739,628.78 = 156,072.85 : x
  2. Step 2: Convert to fraction form
    493,012/739,628.78 = 156,072.85/x
  3. Step 3: Cross multiply
    493,012x = 739,628.78 × 156,072.85
  4. Step 4: Simplify right side
    493,012x = 115,435,971,636.62
  5. Step 5: Solve for x
    x = 115,435,971,636.62/493,012
  6. Step 6: Final answer
    x = 234,144.34

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1.5x scale

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.