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Finding the Fourth Proportional to 483,011.60, 724,517.40 and 305,718.80

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Solution

The fourth proportional to 483,011.60, 724,517.40 and 305,718.80 is: 458,578.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,011.60 : 724,517.40 = 305,718.80 : x
  2. Step 2: Convert to fraction form
    483,011.60/724,517.40 = 305,718.80/x
  3. Step 3: Cross multiply
    483,011.60x = 724,517.40 × 305,718.80
  4. Step 4: Simplify right side
    483,011.60x = 221,498,590,107.12
  5. Step 5: Solve for x
    x = 221,498,590,107.12/483,011.60
  6. Step 6: Final answer
    x = 458,578.20

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Similar ratio
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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.