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Finding the Fourth Proportional to 647,762.70, 970,331.85 and 366,951.90

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Solution

The fourth proportional to 647,762.70, 970,331.85 and 366,951.90 is: 549,684.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,762.70 : 970,331.85 = 366,951.90 : x
  2. Step 2: Convert to fraction form
    647,762.70/970,331.85 = 366,951.90/x
  3. Step 3: Cross multiply
    647,762.70x = 970,331.85 × 366,951.90
  4. Step 4: Simplify right side
    647,762.70x = 356,065,115,988.02
  5. Step 5: Solve for x
    x = 356,065,115,988.02/647,762.70
  6. Step 6: Final answer
    x = 549,684.50

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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.