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Finding the Fourth Proportional to 374,462.40, 561,002.40 and 349,579.20

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Solution

The fourth proportional to 374,462.40, 561,002.40 and 349,579.20 is: 523,723.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,462.40 : 561,002.40 = 349,579.20 : x
  2. Step 2: Convert to fraction form
    374,462.40/561,002.40 = 349,579.20/x
  3. Step 3: Cross multiply
    374,462.40x = 561,002.40 × 349,579.20
  4. Step 4: Simplify right side
    374,462.40x = 196,114,770,190.08
  5. Step 5: Solve for x
    x = 196,114,770,190.08/374,462.40
  6. Step 6: Final answer
    x = 523,723.53

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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.