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Finding the Fourth Proportional to 400,920.84, 601,381.26 and 374,348.79

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Solution

The fourth proportional to 400,920.84, 601,381.26 and 374,348.79 is: 561,523.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,920.84 : 601,381.26 = 374,348.79 : x
  2. Step 2: Convert to fraction form
    400,920.84/601,381.26 = 374,348.79/x
  3. Step 3: Cross multiply
    400,920.84x = 601,381.26 × 374,348.79
  4. Step 4: Simplify right side
    400,920.84x = 225,126,347,009.68
  5. Step 5: Solve for x
    x = 225,126,347,009.68/400,920.84
  6. Step 6: Final answer
    x = 561,523.19

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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.