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Finding the Fourth Proportional to 664,650.50, 917,217.70 and 362,844.50

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Solution

The fourth proportional to 664,650.50, 917,217.70 and 362,844.50 is: 500,725.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,650.50 : 917,217.70 = 362,844.50 : x
  2. Step 2: Convert to fraction form
    664,650.50/917,217.70 = 362,844.50/x
  3. Step 3: Cross multiply
    664,650.50x = 917,217.70 × 362,844.50
  4. Step 4: Simplify right side
    664,650.50x = 332,807,397,747.65
  5. Step 5: Solve for x
    x = 332,807,397,747.65/664,650.50
  6. Step 6: Final answer
    x = 500,725.42

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1.5x scale

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.