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Finding the Fourth Proportional to 613,009.43, 919,477.10 and 228,684.27

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Solution

The fourth proportional to 613,009.43, 919,477.10 and 228,684.27 is: 343,012.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,009.43 : 919,477.10 = 228,684.27 : x
  2. Step 2: Convert to fraction form
    613,009.43/919,477.10 = 228,684.27/x
  3. Step 3: Cross multiply
    613,009.43x = 919,477.10 × 228,684.27
  4. Step 4: Simplify right side
    613,009.43x = 210,269,949,966.93
  5. Step 5: Solve for x
    x = 210,269,949,966.93/613,009.43
  6. Step 6: Final answer
    x = 343,012.59

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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.