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Finding the Fourth Proportional to 483,479.26, 725,225.57 and 128,491.49

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Solution

The fourth proportional to 483,479.26, 725,225.57 and 128,491.49 is: 192,739.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,479.26 : 725,225.57 = 128,491.49 : x
  2. Step 2: Convert to fraction form
    483,479.26/725,225.57 = 128,491.49/x
  3. Step 3: Cross multiply
    483,479.26x = 725,225.57 × 128,491.49
  4. Step 4: Simplify right side
    483,479.26x = 93,185,315,727.85
  5. Step 5: Solve for x
    x = 93,185,315,727.85/483,479.26
  6. Step 6: Final answer
    x = 192,739.01

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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.