Home / 480,553.42-720,933.56-143,621.46

Finding the Fourth Proportional to 480,553.42, 720,933.56 and 143,621.46

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Solution

The fourth proportional to 480,553.42, 720,933.56 and 143,621.46 is: 215,463.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,553.42 : 720,933.56 = 143,621.46 : x
  2. Step 2: Convert to fraction form
    480,553.42/720,933.56 = 143,621.46/x
  3. Step 3: Cross multiply
    480,553.42x = 720,933.56 × 143,621.46
  4. Step 4: Simplify right side
    480,553.42x = 103,541,530,450.20
  5. Step 5: Solve for x
    x = 103,541,530,450.20/480,553.42
  6. Step 6: Final answer
    x = 215,463.10

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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.