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Finding the Fourth Proportional to 448,975.80, 673,463.70 and 281,014.20

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Solution

The fourth proportional to 448,975.80, 673,463.70 and 281,014.20 is: 421,521.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,975.80 : 673,463.70 = 281,014.20 : x
  2. Step 2: Convert to fraction form
    448,975.80/673,463.70 = 281,014.20/x
  3. Step 3: Cross multiply
    448,975.80x = 673,463.70 × 281,014.20
  4. Step 4: Simplify right side
    448,975.80x = 189,252,862,884.54
  5. Step 5: Solve for x
    x = 189,252,862,884.54/448,975.80
  6. Step 6: Final answer
    x = 421,521.30

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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.