Home / 672,723.11-1,007,942.76-405,923.01

Finding the Fourth Proportional to 672,723.11, 1,007,942.76 and 405,923.01

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Solution

The fourth proportional to 672,723.11, 1,007,942.76 and 405,923.01 is: 608,195.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,723.11 : 1,007,942.76 = 405,923.01 : x
  2. Step 2: Convert to fraction form
    672,723.11/1,007,942.76 = 405,923.01/x
  3. Step 3: Cross multiply
    672,723.11x = 1,007,942.76 × 405,923.01
  4. Step 4: Simplify right side
    672,723.11x = 409,147,159,046.91
  5. Step 5: Solve for x
    x = 409,147,159,046.91/672,723.11
  6. Step 6: Final answer
    x = 608,195.49

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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.