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Finding the Fourth Proportional to 454,984.30, 682,476.45 and 313,266.70

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Solution

The fourth proportional to 454,984.30, 682,476.45 and 313,266.70 is: 469,900.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,984.30 : 682,476.45 = 313,266.70 : x
  2. Step 2: Convert to fraction form
    454,984.30/682,476.45 = 313,266.70/x
  3. Step 3: Cross multiply
    454,984.30x = 682,476.45 × 313,266.70
  4. Step 4: Simplify right side
    454,984.30x = 213,797,145,319.22
  5. Step 5: Solve for x
    x = 213,797,145,319.22/454,984.30
  6. Step 6: Final answer
    x = 469,900.05

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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.