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Finding the Fourth Proportional to 635,549.72, 876,845.21 and 359,869.89

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Solution

The fourth proportional to 635,549.72, 876,845.21 and 359,869.89 is: 496,499.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,549.72 : 876,845.21 = 359,869.89 : x
  2. Step 2: Convert to fraction form
    635,549.72/876,845.21 = 359,869.89/x
  3. Step 3: Cross multiply
    635,549.72x = 876,845.21 × 359,869.89
  4. Step 4: Simplify right side
    635,549.72x = 315,550,189,269.73
  5. Step 5: Solve for x
    x = 315,550,189,269.73/635,549.72
  6. Step 6: Final answer
    x = 496,499.61

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1.5x scale

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.