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Finding the Fourth Proportional to 490,793.10, 736,043.85 and 191,101.20

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Solution

The fourth proportional to 490,793.10, 736,043.85 and 191,101.20 is: 286,595.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,793.10 : 736,043.85 = 191,101.20 : x
  2. Step 2: Convert to fraction form
    490,793.10/736,043.85 = 191,101.20/x
  3. Step 3: Cross multiply
    490,793.10x = 736,043.85 × 191,101.20
  4. Step 4: Simplify right side
    490,793.10x = 140,658,862,987.62
  5. Step 5: Solve for x
    x = 140,658,862,987.62/490,793.10
  6. Step 6: Final answer
    x = 286,595.03

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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.