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Finding the Fourth Proportional to 647,736.70, 970,292.85 and 366,925.90

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Solution

The fourth proportional to 647,736.70, 970,292.85 and 366,925.90 is: 549,645.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,736.70 : 970,292.85 = 366,925.90 : x
  2. Step 2: Convert to fraction form
    647,736.70/970,292.85 = 366,925.90/x
  3. Step 3: Cross multiply
    647,736.70x = 970,292.85 × 366,925.90
  4. Step 4: Simplify right side
    647,736.70x = 356,025,577,249.82
  5. Step 5: Solve for x
    x = 356,025,577,249.82/647,736.70
  6. Step 6: Final answer
    x = 549,645.52

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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.