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Finding the Third Proportional to 401,438.50 and 587,084.50

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Solution

The third proportional to 401,438.50 and 587,084.50 is: 858,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,438.50 : 587,084.50 = 587,084.50 : x
  2. Step 2: Convert to fraction form
    401,438.50/587,084.50 = 587,084.50/x
  3. Step 3: Cross multiply
    401,438.50x = 587,084.50 × 587,084.50
  4. Step 4: Simplify right side
    401,438.50x = 344,668,210,140.25
  5. Step 5: Solve for x
    x = 344,668,210,140.25/401,438.50
  6. Step 6: Final answer
    x = 858,582.85

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.