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Finding the Fourth Proportional to 634,878.92, 876,143.60 and 348,425.66

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Solution

The fourth proportional to 634,878.92, 876,143.60 and 348,425.66 is: 480,833.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,878.92 : 876,143.60 = 348,425.66 : x
  2. Step 2: Convert to fraction form
    634,878.92/876,143.60 = 348,425.66/x
  3. Step 3: Cross multiply
    634,878.92x = 876,143.60 × 348,425.66
  4. Step 4: Simplify right side
    634,878.92x = 305,270,905,961.93
  5. Step 5: Solve for x
    x = 305,270,905,961.93/634,878.92
  6. Step 6: Final answer
    x = 480,833.27

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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.