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Finding the Fourth Proportional to 647,648.70, 970,160.85 and 366,837.90

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Solution

The fourth proportional to 647,648.70, 970,160.85 and 366,837.90 is: 549,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,648.70 : 970,160.85 = 366,837.90 : x
  2. Step 2: Convert to fraction form
    647,648.70/970,160.85 = 366,837.90/x
  3. Step 3: Cross multiply
    647,648.70x = 970,160.85 × 366,837.90
  4. Step 4: Simplify right side
    647,648.70x = 355,891,768,876.22
  5. Step 5: Solve for x
    x = 355,891,768,876.22/647,648.70
  6. Step 6: Final answer
    x = 549,513.60

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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.