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Finding the Fourth Proportional to 635,620.80, 877,281.78 and 360,027.96

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Solution

The fourth proportional to 635,620.80, 877,281.78 and 360,027.96 is: 496,909.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,620.80 : 877,281.78 = 360,027.96 : x
  2. Step 2: Convert to fraction form
    635,620.80/877,281.78 = 360,027.96/x
  3. Step 3: Cross multiply
    635,620.80x = 877,281.78 × 360,027.96
  4. Step 4: Simplify right side
    635,620.80x = 315,845,969,598.57
  5. Step 5: Solve for x
    x = 315,845,969,598.57/635,620.80
  6. Step 6: Final answer
    x = 496,909.43

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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.