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Finding the Fourth Proportional to 512,800.20, 769,200.30 and 483,275.70

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Solution

The fourth proportional to 512,800.20, 769,200.30 and 483,275.70 is: 724,913.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,800.20 : 769,200.30 = 483,275.70 : x
  2. Step 2: Convert to fraction form
    512,800.20/769,200.30 = 483,275.70/x
  3. Step 3: Cross multiply
    512,800.20x = 769,200.30 × 483,275.70
  4. Step 4: Simplify right side
    512,800.20x = 371,735,813,422.71
  5. Step 5: Solve for x
    x = 371,735,813,422.71/512,800.20
  6. Step 6: Final answer
    x = 724,913.55

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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.