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Finding the Fourth Proportional to 381,650.40, 572,475.60 and 322,601.40

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Solution

The fourth proportional to 381,650.40, 572,475.60 and 322,601.40 is: 483,902.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,650.40 : 572,475.60 = 322,601.40 : x
  2. Step 2: Convert to fraction form
    381,650.40/572,475.60 = 322,601.40/x
  3. Step 3: Cross multiply
    381,650.40x = 572,475.60 × 322,601.40
  4. Step 4: Simplify right side
    381,650.40x = 184,681,430,025.84
  5. Step 5: Solve for x
    x = 184,681,430,025.84/381,650.40
  6. Step 6: Final answer
    x = 483,902.10

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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.