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Finding the Fourth Proportional to 634,893.05, 876,184.31 and 348,410.81

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Solution

The fourth proportional to 634,893.05, 876,184.31 and 348,410.81 is: 480,824.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,893.05 : 876,184.31 = 348,410.81 : x
  2. Step 2: Convert to fraction form
    634,893.05/876,184.31 = 348,410.81/x
  3. Step 3: Cross multiply
    634,893.05x = 876,184.31 × 348,410.81
  4. Step 4: Simplify right side
    634,893.05x = 305,272,083,414.34
  5. Step 5: Solve for x
    x = 305,272,083,414.34/634,893.05
  6. Step 6: Final answer
    x = 480,824.42

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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.