Home / 727,412.20-1,091,118.30-221,972.20

Finding the Fourth Proportional to 727,412.20, 1,091,118.30 and 221,972.20

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Solution

The fourth proportional to 727,412.20, 1,091,118.30 and 221,972.20 is: 332,958.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,412.20 : 1,091,118.30 = 221,972.20 : x
  2. Step 2: Convert to fraction form
    727,412.20/1,091,118.30 = 221,972.20/x
  3. Step 3: Cross multiply
    727,412.20x = 1,091,118.30 × 221,972.20
  4. Step 4: Simplify right side
    727,412.20x = 242,197,929,511.26
  5. Step 5: Solve for x
    x = 242,197,929,511.26/727,412.20
  6. Step 6: Final answer
    x = 332,958.30

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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.