Home / 729,942.46-1,007,310.63-407,658.22

Finding the Fourth Proportional to 729,942.46, 1,007,310.63 and 407,658.22

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Solution

The fourth proportional to 729,942.46, 1,007,310.63 and 407,658.22 is: 562,562.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,942.46 : 1,007,310.63 = 407,658.22 : x
  2. Step 2: Convert to fraction form
    729,942.46/1,007,310.63 = 407,658.22/x
  3. Step 3: Cross multiply
    729,942.46x = 1,007,310.63 × 407,658.22
  4. Step 4: Simplify right side
    729,942.46x = 410,638,458,412.88
  5. Step 5: Solve for x
    x = 410,638,458,412.88/729,942.46
  6. Step 6: Final answer
    x = 562,562.78

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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.