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Finding the Fourth Proportional to 672,635.44, 927,712.04 and 430,940.66

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Solution

The fourth proportional to 672,635.44, 927,712.04 and 430,940.66 is: 594,361.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,635.44 : 927,712.04 = 430,940.66 : x
  2. Step 2: Convert to fraction form
    672,635.44/927,712.04 = 430,940.66/x
  3. Step 3: Cross multiply
    672,635.44x = 927,712.04 × 430,940.66
  4. Step 4: Simplify right side
    672,635.44x = 399,788,832,014.28
  5. Step 5: Solve for x
    x = 399,788,832,014.28/672,635.44
  6. Step 6: Final answer
    x = 594,361.83

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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.