Home / 839,489.09-1,259,228.51-240,451.34

Finding the Fourth Proportional to 839,489.09, 1,259,228.51 and 240,451.34

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Solution

The fourth proportional to 839,489.09, 1,259,228.51 and 240,451.34 is: 360,675.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,489.09 : 1,259,228.51 = 240,451.34 : x
  2. Step 2: Convert to fraction form
    839,489.09/1,259,228.51 = 240,451.34/x
  3. Step 3: Cross multiply
    839,489.09x = 1,259,228.51 × 240,451.34
  4. Step 4: Simplify right side
    839,489.09x = 302,783,179,540.58
  5. Step 5: Solve for x
    x = 302,783,179,540.58/839,489.09
  6. Step 6: Final answer
    x = 360,675.54

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Half scale
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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.