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Finding the Fourth Proportional to 469,600.48, 648,327.92 and 308,740.96

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Solution

The fourth proportional to 469,600.48, 648,327.92 and 308,740.96 is: 426,246.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,600.48 : 648,327.92 = 308,740.96 : x
  2. Step 2: Convert to fraction form
    469,600.48/648,327.92 = 308,740.96/x
  3. Step 3: Cross multiply
    469,600.48x = 648,327.92 × 308,740.96
  4. Step 4: Simplify right side
    469,600.48x = 200,165,384,415.60
  5. Step 5: Solve for x
    x = 200,165,384,415.60/469,600.48
  6. Step 6: Final answer
    x = 426,246.12

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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.