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Finding the Fourth Proportional to 479,331.43, 661,717.06 and 298,101.73

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Solution

The fourth proportional to 479,331.43, 661,717.06 and 298,101.73 is: 411,529.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,331.43 : 661,717.06 = 298,101.73 : x
  2. Step 2: Convert to fraction form
    479,331.43/661,717.06 = 298,101.73/x
  3. Step 3: Cross multiply
    479,331.43x = 661,717.06 × 298,101.73
  4. Step 4: Simplify right side
    479,331.43x = 197,259,000,356.51
  5. Step 5: Solve for x
    x = 197,259,000,356.51/479,331.43
  6. Step 6: Final answer
    x = 411,529.45

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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.