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Finding the Fourth Proportional to 483,477.18, 666,660.65 and 330,540.27

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Solution

The fourth proportional to 483,477.18, 666,660.65 and 330,540.27 is: 455,777.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,477.18 : 666,660.65 = 330,540.27 : x
  2. Step 2: Convert to fraction form
    483,477.18/666,660.65 = 330,540.27/x
  3. Step 3: Cross multiply
    483,477.18x = 666,660.65 × 330,540.27
  4. Step 4: Simplify right side
    483,477.18x = 220,358,189,596.67
  5. Step 5: Solve for x
    x = 220,358,189,596.67/483,477.18
  6. Step 6: Final answer
    x = 455,777.85

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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.