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Finding the Fourth Proportional to 647,734.70, 970,289.85 and 366,923.90

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Solution

The fourth proportional to 647,734.70, 970,289.85 and 366,923.90 is: 549,642.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,734.70 : 970,289.85 = 366,923.90 : x
  2. Step 2: Convert to fraction form
    647,734.70/970,289.85 = 366,923.90/x
  3. Step 3: Cross multiply
    647,734.70x = 970,289.85 × 366,923.90
  4. Step 4: Simplify right side
    647,734.70x = 356,022,535,892.42
  5. Step 5: Solve for x
    x = 356,022,535,892.42/647,734.70
  6. Step 6: Final answer
    x = 549,642.52

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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.