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Finding the Fourth Proportional to 450,481.20, 675,721.80 and 443,482.80

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Solution

The fourth proportional to 450,481.20, 675,721.80 and 443,482.80 is: 665,224.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,481.20 : 675,721.80 = 443,482.80 : x
  2. Step 2: Convert to fraction form
    450,481.20/675,721.80 = 443,482.80/x
  3. Step 3: Cross multiply
    450,481.20x = 675,721.80 × 443,482.80
  4. Step 4: Simplify right side
    450,481.20x = 299,670,995,885.04
  5. Step 5: Solve for x
    x = 299,670,995,885.04/450,481.20
  6. Step 6: Final answer
    x = 665,224.20

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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.