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Finding the Fourth Proportional to 490,820.10, 736,230.15 and 483,821.70

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Solution

The fourth proportional to 490,820.10, 736,230.15 and 483,821.70 is: 725,732.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,820.10 : 736,230.15 = 483,821.70 : x
  2. Step 2: Convert to fraction form
    490,820.10/736,230.15 = 483,821.70/x
  3. Step 3: Cross multiply
    490,820.10x = 736,230.15 × 483,821.70
  4. Step 4: Simplify right side
    490,820.10x = 356,204,122,764.26
  5. Step 5: Solve for x
    x = 356,204,122,764.26/490,820.10
  6. Step 6: Final answer
    x = 725,732.55

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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.