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Finding the Fourth Proportional to 490,920.90, 736,770.15 and 191,544.90

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Solution

The fourth proportional to 490,920.90, 736,770.15 and 191,544.90 is: 287,469.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,920.90 : 736,770.15 = 191,544.90 : x
  2. Step 2: Convert to fraction form
    490,920.90/736,770.15 = 191,544.90/x
  3. Step 3: Cross multiply
    490,920.90x = 736,770.15 × 191,544.90
  4. Step 4: Simplify right side
    490,920.90x = 141,124,564,704.74
  5. Step 5: Solve for x
    x = 141,124,564,704.74/490,920.90
  6. Step 6: Final answer
    x = 287,469.05

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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.