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Finding the Fourth Proportional to 634,876.38, 876,143.79 and 348,414.62

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Solution

The fourth proportional to 634,876.38, 876,143.79 and 348,414.62 is: 480,820.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,876.38 : 876,143.79 = 348,414.62 : x
  2. Step 2: Convert to fraction form
    634,876.38/876,143.79 = 348,414.62/x
  3. Step 3: Cross multiply
    634,876.38x = 876,143.79 × 348,414.62
  4. Step 4: Simplify right side
    634,876.38x = 305,261,301,277.49
  5. Step 5: Solve for x
    x = 305,261,301,277.49/634,876.38
  6. Step 6: Final answer
    x = 480,820.06

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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.