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Finding the Fourth Proportional to 635,134.21, 876,462.53 and 359,486.15

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Solution

The fourth proportional to 635,134.21, 876,462.53 and 359,486.15 is: 496,078.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,134.21 : 876,462.53 = 359,486.15 : x
  2. Step 2: Convert to fraction form
    635,134.21/876,462.53 = 359,486.15/x
  3. Step 3: Cross multiply
    635,134.21x = 876,462.53 × 359,486.15
  4. Step 4: Simplify right side
    635,134.21x = 315,076,139,236.52
  5. Step 5: Solve for x
    x = 315,076,139,236.52/635,134.21
  6. Step 6: Final answer
    x = 496,078.05

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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.