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Finding the Fourth Proportional to 662,513.60, 993,284.40 and 262,956.80

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Solution

The fourth proportional to 662,513.60, 993,284.40 and 262,956.80 is: 394,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,513.60 : 993,284.40 = 262,956.80 : x
  2. Step 2: Convert to fraction form
    662,513.60/993,284.40 = 262,956.80/x
  3. Step 3: Cross multiply
    662,513.60x = 993,284.40 × 262,956.80
  4. Step 4: Simplify right side
    662,513.60x = 261,190,887,313.92
  5. Step 5: Solve for x
    x = 261,190,887,313.92/662,513.60
  6. Step 6: Final answer
    x = 394,242.30

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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.