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Finding the Fourth Proportional to 635,861.90, 877,565.71 and 381,353.10

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Solution

The fourth proportional to 635,861.90, 877,565.71 and 381,353.10 is: 526,313.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,861.90 : 877,565.71 = 381,353.10 : x
  2. Step 2: Convert to fraction form
    635,861.90/877,565.71 = 381,353.10/x
  3. Step 3: Cross multiply
    635,861.90x = 877,565.71 × 381,353.10
  4. Step 4: Simplify right side
    635,861.90x = 334,662,403,962.20
  5. Step 5: Solve for x
    x = 334,662,403,962.20/635,861.90
  6. Step 6: Final answer
    x = 526,313.03

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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.