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Finding the Fourth Proportional to 563,009.72, 842,395.77 and 394,858.28

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Solution

The fourth proportional to 563,009.72, 842,395.77 and 394,858.28 is: 590,801.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,009.72 : 842,395.77 = 394,858.28 : x
  2. Step 2: Convert to fraction form
    563,009.72/842,395.77 = 394,858.28/x
  3. Step 3: Cross multiply
    563,009.72x = 842,395.77 × 394,858.28
  4. Step 4: Simplify right side
    563,009.72x = 332,626,940,609.50
  5. Step 5: Solve for x
    x = 332,626,940,609.50/563,009.72
  6. Step 6: Final answer
    x = 590,801.42

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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.