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Finding the Fourth Proportional to 603,600.07, 906,168.38 and 391,256.56

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Solution

The fourth proportional to 603,600.07, 906,168.38 and 391,256.56 is: 587,382.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,600.07 : 906,168.38 = 391,256.56 : x
  2. Step 2: Convert to fraction form
    603,600.07/906,168.38 = 391,256.56/x
  3. Step 3: Cross multiply
    603,600.07x = 906,168.38 × 391,256.56
  4. Step 4: Simplify right side
    603,600.07x = 354,544,324,516.82
  5. Step 5: Solve for x
    x = 354,544,324,516.82/603,600.07
  6. Step 6: Final answer
    x = 587,382.84

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1.5x scale

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.