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Finding the Fourth Proportional to 403,777.80, 606,249.90 and 304,633.80

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Solution

The fourth proportional to 403,777.80, 606,249.90 and 304,633.80 is: 457,390.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,777.80 : 606,249.90 = 304,633.80 : x
  2. Step 2: Convert to fraction form
    403,777.80/606,249.90 = 304,633.80/x
  3. Step 3: Cross multiply
    403,777.80x = 606,249.90 × 304,633.80
  4. Step 4: Simplify right side
    403,777.80x = 184,684,210,786.62
  5. Step 5: Solve for x
    x = 184,684,210,786.62/403,777.80
  6. Step 6: Final answer
    x = 457,390.70

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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.