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Finding the Fourth Proportional to 1,150,628.86, 1,724,745.87 and 644,447.70

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Solution

The fourth proportional to 1,150,628.86, 1,724,745.87 and 644,447.70 is: 966,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150,628.86 : 1,724,745.87 = 644,447.70 : x
  2. Step 2: Convert to fraction form
    1,150,628.86/1,724,745.87 = 644,447.70/x
  3. Step 3: Cross multiply
    1,150,628.86x = 1,724,745.87 × 644,447.70
  4. Step 4: Simplify right side
    1,150,628.86x = 1,111,508,509,006.00
  5. Step 5: Solve for x
    x = 1,111,508,509,006.00/1,150,628.86
  6. Step 6: Final answer
    x = 966,000.90

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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.