Home / 850,985.92-1,276,665.54-251,993.80

Finding the Fourth Proportional to 850,985.92, 1,276,665.54 and 251,993.80

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Solution

The fourth proportional to 850,985.92, 1,276,665.54 and 251,993.80 is: 378,045.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,985.92 : 1,276,665.54 = 251,993.80 : x
  2. Step 2: Convert to fraction form
    850,985.92/1,276,665.54 = 251,993.80/x
  3. Step 3: Cross multiply
    850,985.92x = 1,276,665.54 × 251,993.80
  4. Step 4: Simplify right side
    850,985.92x = 321,711,800,753.65
  5. Step 5: Solve for x
    x = 321,711,800,753.65/850,985.92
  6. Step 6: Final answer
    x = 378,045.97

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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.