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Finding the Fourth Proportional to 490,616.60, 735,949.20 and 254,420.60

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Solution

The fourth proportional to 490,616.60, 735,949.20 and 254,420.60 is: 381,643.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,616.60 : 735,949.20 = 254,420.60 : x
  2. Step 2: Convert to fraction form
    490,616.60/735,949.20 = 254,420.60/x
  3. Step 3: Cross multiply
    490,616.60x = 735,949.20 × 254,420.60
  4. Step 4: Simplify right side
    490,616.60x = 187,240,637,033.52
  5. Step 5: Solve for x
    x = 187,240,637,033.52/490,616.60
  6. Step 6: Final answer
    x = 381,643.50

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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.