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Finding the Fourth Proportional to 483,730.80, 725,596.20 and 440,185.20

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Solution

The fourth proportional to 483,730.80, 725,596.20 and 440,185.20 is: 660,277.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,730.80 : 725,596.20 = 440,185.20 : x
  2. Step 2: Convert to fraction form
    483,730.80/725,596.20 = 440,185.20/x
  3. Step 3: Cross multiply
    483,730.80x = 725,596.20 × 440,185.20
  4. Step 4: Simplify right side
    483,730.80x = 319,396,708,416.24
  5. Step 5: Solve for x
    x = 319,396,708,416.24/483,730.80
  6. Step 6: Final answer
    x = 660,277.80

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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.