Home / 929,128.82-1,392,752.28-629,639.96

Finding the Fourth Proportional to 929,128.82, 1,392,752.28 and 629,639.96

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Solution

The fourth proportional to 929,128.82, 1,392,752.28 and 629,639.96 is: 943,822.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,128.82 : 1,392,752.28 = 629,639.96 : x
  2. Step 2: Convert to fraction form
    929,128.82/1,392,752.28 = 629,639.96/x
  3. Step 3: Cross multiply
    929,128.82x = 1,392,752.28 × 629,639.96
  4. Step 4: Simplify right side
    929,128.82x = 876,932,489,869.11
  5. Step 5: Solve for x
    x = 876,932,489,869.11/929,128.82
  6. Step 6: Final answer
    x = 943,822.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.