Home / 413,921.03-571,644.72-285,194.21

Finding the Fourth Proportional to 413,921.03, 571,644.72 and 285,194.21

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Solution

The fourth proportional to 413,921.03, 571,644.72 and 285,194.21 is: 393,866.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,921.03 : 571,644.72 = 285,194.21 : x
  2. Step 2: Convert to fraction form
    413,921.03/571,644.72 = 285,194.21/x
  3. Step 3: Cross multiply
    413,921.03x = 571,644.72 × 285,194.21
  4. Step 4: Simplify right side
    413,921.03x = 163,029,761,462.85
  5. Step 5: Solve for x
    x = 163,029,761,462.85/413,921.03
  6. Step 6: Final answer
    x = 393,866.83

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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.