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Finding the Fourth Proportional to 635,846.40, 877,544.32 and 381,337.60

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Solution

The fourth proportional to 635,846.40, 877,544.32 and 381,337.60 is: 526,291.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,846.40 : 877,544.32 = 381,337.60 : x
  2. Step 2: Convert to fraction form
    635,846.40/877,544.32 = 381,337.60/x
  3. Step 3: Cross multiply
    635,846.40x = 877,544.32 × 381,337.60
  4. Step 4: Simplify right side
    635,846.40x = 334,640,644,882.43
  5. Step 5: Solve for x
    x = 334,640,644,882.43/635,846.40
  6. Step 6: Final answer
    x = 526,291.64

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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.