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Finding the Fourth Proportional to 512,569.20, 768,853.80 and 483,538.80

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Solution

The fourth proportional to 512,569.20, 768,853.80 and 483,538.80 is: 725,308.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,569.20 : 768,853.80 = 483,538.80 : x
  2. Step 2: Convert to fraction form
    512,569.20/768,853.80 = 483,538.80/x
  3. Step 3: Cross multiply
    512,569.20x = 768,853.80 × 483,538.80
  4. Step 4: Simplify right side
    512,569.20x = 371,770,643,827.44
  5. Step 5: Solve for x
    x = 371,770,643,827.44/512,569.20
  6. Step 6: Final answer
    x = 725,308.20

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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.