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Finding the Third Proportional to 288,478.50 and 632,313

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Solution

The third proportional to 288,478.50 and 632,313 is: 1,385,960.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,478.50 : 632,313 = 632,313 : x
  2. Step 2: Convert to fraction form
    288,478.50/632,313 = 632,313/x
  3. Step 3: Cross multiply
    288,478.50x = 632,313 × 632,313
  4. Step 4: Simplify right side
    288,478.50x = 399,819,729,969
  5. Step 5: Solve for x
    x = 399,819,729,969/288,478.50
  6. Step 6: Final answer
    x = 1,385,960.24

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.