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Finding the Fourth Proportional to 522,230.28, 720,671.52 and 292,786.44

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Solution

The fourth proportional to 522,230.28, 720,671.52 and 292,786.44 is: 404,041.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,230.28 : 720,671.52 = 292,786.44 : x
  2. Step 2: Convert to fraction form
    522,230.28/720,671.52 = 292,786.44/x
  3. Step 3: Cross multiply
    522,230.28x = 720,671.52 × 292,786.44
  4. Step 4: Simplify right side
    522,230.28x = 211,002,848,750.19
  5. Step 5: Solve for x
    x = 211,002,848,750.19/522,230.28
  6. Step 6: Final answer
    x = 404,041.77

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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.