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Finding the Fourth Proportional to 647,730.70, 970,283.85 and 366,919.90

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Solution

The fourth proportional to 647,730.70, 970,283.85 and 366,919.90 is: 549,636.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,730.70 : 970,283.85 = 366,919.90 : x
  2. Step 2: Convert to fraction form
    647,730.70/970,283.85 = 366,919.90/x
  3. Step 3: Cross multiply
    647,730.70x = 970,283.85 × 366,919.90
  4. Step 4: Simplify right side
    647,730.70x = 356,016,453,213.62
  5. Step 5: Solve for x
    x = 356,016,453,213.62/647,730.70
  6. Step 6: Final answer
    x = 549,636.53

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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.