Home / 578,069.70-867,104.55-484,757.70

Finding the Fourth Proportional to 578,069.70, 867,104.55 and 484,757.70

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Solution

The fourth proportional to 578,069.70, 867,104.55 and 484,757.70 is: 727,136.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,069.70 : 867,104.55 = 484,757.70 : x
  2. Step 2: Convert to fraction form
    578,069.70/867,104.55 = 484,757.70/x
  3. Step 3: Cross multiply
    578,069.70x = 867,104.55 × 484,757.70
  4. Step 4: Simplify right side
    578,069.70x = 420,335,607,317.54
  5. Step 5: Solve for x
    x = 420,335,607,317.54/578,069.70
  6. Step 6: Final answer
    x = 727,136.55

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Double scale
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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.