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Finding the Fourth Proportional to 465,450.48, 642,700.44 and 379,422.96

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Solution

The fourth proportional to 465,450.48, 642,700.44 and 379,422.96 is: 523,912.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,450.48 : 642,700.44 = 379,422.96 : x
  2. Step 2: Convert to fraction form
    465,450.48/642,700.44 = 379,422.96/x
  3. Step 3: Cross multiply
    465,450.48x = 642,700.44 × 379,422.96
  4. Step 4: Simplify right side
    465,450.48x = 243,855,303,338.10
  5. Step 5: Solve for x
    x = 243,855,303,338.10/465,450.48
  6. Step 6: Final answer
    x = 523,912.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.