Home / 851,433.66-1,277,150.49-220,345.65

Finding the Fourth Proportional to 851,433.66, 1,277,150.49 and 220,345.65

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Solution

The fourth proportional to 851,433.66, 1,277,150.49 and 220,345.65 is: 330,518.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,433.66 : 1,277,150.49 = 220,345.65 : x
  2. Step 2: Convert to fraction form
    851,433.66/1,277,150.49 = 220,345.65/x
  3. Step 3: Cross multiply
    851,433.66x = 1,277,150.49 × 220,345.65
  4. Step 4: Simplify right side
    851,433.66x = 281,414,554,866.87
  5. Step 5: Solve for x
    x = 281,414,554,866.87/851,433.66
  6. Step 6: Final answer
    x = 330,518.48

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Double scale
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Similar ratio
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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.