Home / 876,009.80-1,314,014.70-211,161.80

Finding the Fourth Proportional to 876,009.80, 1,314,014.70 and 211,161.80

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Solution

The fourth proportional to 876,009.80, 1,314,014.70 and 211,161.80 is: 316,742.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,009.80 : 1,314,014.70 = 211,161.80 : x
  2. Step 2: Convert to fraction form
    876,009.80/1,314,014.70 = 211,161.80/x
  3. Step 3: Cross multiply
    876,009.80x = 1,314,014.70 × 211,161.80
  4. Step 4: Simplify right side
    876,009.80x = 277,469,709,278.46
  5. Step 5: Solve for x
    x = 277,469,709,278.46/876,009.80
  6. Step 6: Final answer
    x = 316,742.70

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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.