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Finding the Fourth Proportional to 640,027.68, 883,304.10 and 368,105.82

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Solution

The fourth proportional to 640,027.68, 883,304.10 and 368,105.82 is: 508,023.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,027.68 : 883,304.10 = 368,105.82 : x
  2. Step 2: Convert to fraction form
    640,027.68/883,304.10 = 368,105.82/x
  3. Step 3: Cross multiply
    640,027.68x = 883,304.10 × 368,105.82
  4. Step 4: Simplify right side
    640,027.68x = 325,149,380,039.86
  5. Step 5: Solve for x
    x = 325,149,380,039.86/640,027.68
  6. Step 6: Final answer
    x = 508,023.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.