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Finding the Fourth Proportional to 490,506.60, 735,784.20 and 254,310.60

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Solution

The fourth proportional to 490,506.60, 735,784.20 and 254,310.60 is: 381,478.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,506.60 : 735,784.20 = 254,310.60 : x
  2. Step 2: Convert to fraction form
    490,506.60/735,784.20 = 254,310.60/x
  3. Step 3: Cross multiply
    490,506.60x = 735,784.20 × 254,310.60
  4. Step 4: Simplify right side
    490,506.60x = 187,117,721,372.52
  5. Step 5: Solve for x
    x = 187,117,721,372.52/490,506.60
  6. Step 6: Final answer
    x = 381,478.50

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1.5x scale

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.