Home / 668,459.82-1,002,855.78-331,658.58

Finding the Fourth Proportional to 668,459.82, 1,002,855.78 and 331,658.58

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Solution

The fourth proportional to 668,459.82, 1,002,855.78 and 331,658.58 is: 497,570.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,459.82 : 1,002,855.78 = 331,658.58 : x
  2. Step 2: Convert to fraction form
    668,459.82/1,002,855.78 = 331,658.58/x
  3. Step 3: Cross multiply
    668,459.82x = 1,002,855.78 × 331,658.58
  4. Step 4: Simplify right side
    668,459.82x = 332,605,723,939.59
  5. Step 5: Solve for x
    x = 332,605,723,939.59/668,459.82
  6. Step 6: Final answer
    x = 497,570.26

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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.