Home / 666,668.61-1,000,227.35-211,334.20

Finding the Fourth Proportional to 666,668.61, 1,000,227.35 and 211,334.20

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Solution

The fourth proportional to 666,668.61, 1,000,227.35 and 211,334.20 is: 317,072.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,668.61 : 1,000,227.35 = 211,334.20 : x
  2. Step 2: Convert to fraction form
    666,668.61/1,000,227.35 = 211,334.20/x
  3. Step 3: Cross multiply
    666,668.61x = 1,000,227.35 × 211,334.20
  4. Step 4: Simplify right side
    666,668.61x = 211,382,244,858.14
  5. Step 5: Solve for x
    x = 211,382,244,858.14/666,668.61
  6. Step 6: Final answer
    x = 317,072.44

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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.