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Finding the Fourth Proportional to 664,144.80, 916,530.03 and 362,338.80

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Solution

The fourth proportional to 664,144.80, 916,530.03 and 362,338.80 is: 500,033.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,144.80 : 916,530.03 = 362,338.80 : x
  2. Step 2: Convert to fraction form
    664,144.80/916,530.03 = 362,338.80/x
  3. Step 3: Cross multiply
    664,144.80x = 916,530.03 × 362,338.80
  4. Step 4: Simplify right side
    664,144.80x = 332,094,391,234.16
  5. Step 5: Solve for x
    x = 332,094,391,234.16/664,144.80
  6. Step 6: Final answer
    x = 500,033.11

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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.