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Finding the Fourth Proportional to 634,264, 875,310.80 and 347,795.08

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Solution

The fourth proportional to 634,264, 875,310.80 and 347,795.08 is: 479,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,264 : 875,310.80 = 347,795.08 : x
  2. Step 2: Convert to fraction form
    634,264/875,310.80 = 347,795.08/x
  3. Step 3: Cross multiply
    634,264x = 875,310.80 × 347,795.08
  4. Step 4: Simplify right side
    634,264x = 304,428,789,710.86
  5. Step 5: Solve for x
    x = 304,428,789,710.86/634,264
  6. Step 6: Final answer
    x = 479,971.73

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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.