Home / 851,015.31-1,276,527.08-251,987.77

Finding the Fourth Proportional to 851,015.31, 1,276,527.08 and 251,987.77

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Solution

The fourth proportional to 851,015.31, 1,276,527.08 and 251,987.77 is: 377,982.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,015.31 : 1,276,527.08 = 251,987.77 : x
  2. Step 2: Convert to fraction form
    851,015.31/1,276,527.08 = 251,987.77/x
  3. Step 3: Cross multiply
    851,015.31x = 1,276,527.08 × 251,987.77
  4. Step 4: Simplify right side
    851,015.31x = 321,669,212,233.81
  5. Step 5: Solve for x
    x = 321,669,212,233.81/851,015.31
  6. Step 6: Final answer
    x = 377,982.87

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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.