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Finding the Fourth Proportional to 490,954.40, 736,863.60 and 291,024.80

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Solution

The fourth proportional to 490,954.40, 736,863.60 and 291,024.80 is: 436,793.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,954.40 : 736,863.60 = 291,024.80 : x
  2. Step 2: Convert to fraction form
    490,954.40/736,863.60 = 291,024.80/x
  3. Step 3: Cross multiply
    490,954.40x = 736,863.60 × 291,024.80
  4. Step 4: Simplify right side
    490,954.40x = 214,445,581,817.28
  5. Step 5: Solve for x
    x = 214,445,581,817.28/490,954.40
  6. Step 6: Final answer
    x = 436,793.28

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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.