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Finding the Fourth Proportional to 474,866.62, 655,255.89 and 378,315.35

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Solution

The fourth proportional to 474,866.62, 655,255.89 and 378,315.35 is: 522,027.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,866.62 : 655,255.89 = 378,315.35 : x
  2. Step 2: Convert to fraction form
    474,866.62/655,255.89 = 378,315.35/x
  3. Step 3: Cross multiply
    474,866.62x = 655,255.89 × 378,315.35
  4. Step 4: Simplify right side
    474,866.62x = 247,893,361,364.91
  5. Step 5: Solve for x
    x = 247,893,361,364.91/474,866.62
  6. Step 6: Final answer
    x = 522,027.35

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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.