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Finding the Fourth Proportional to 644,762.57, 966,471.14 and 360,035.69

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Solution

The fourth proportional to 644,762.57, 966,471.14 and 360,035.69 is: 539,677.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,762.57 : 966,471.14 = 360,035.69 : x
  2. Step 2: Convert to fraction form
    644,762.57/966,471.14 = 360,035.69/x
  3. Step 3: Cross multiply
    644,762.57x = 966,471.14 × 360,035.69
  4. Step 4: Simplify right side
    644,762.57x = 347,964,099,822.72
  5. Step 5: Solve for x
    x = 347,964,099,822.72/644,762.57
  6. Step 6: Final answer
    x = 539,677.89

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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.