Home / 729,942.96-1,007,311.32-407,658.72

Finding the Fourth Proportional to 729,942.96, 1,007,311.32 and 407,658.72

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Solution

The fourth proportional to 729,942.96, 1,007,311.32 and 407,658.72 is: 562,563.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,942.96 : 1,007,311.32 = 407,658.72 : x
  2. Step 2: Convert to fraction form
    729,942.96/1,007,311.32 = 407,658.72/x
  3. Step 3: Cross multiply
    729,942.96x = 1,007,311.32 × 407,658.72
  4. Step 4: Simplify right side
    729,942.96x = 410,639,243,352.71
  5. Step 5: Solve for x
    x = 410,639,243,352.71/729,942.96
  6. Step 6: Final answer
    x = 562,563.47

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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.