Home / 736,879.20-1,105,318.80-381,775.20

Finding the Fourth Proportional to 736,879.20, 1,105,318.80 and 381,775.20

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Solution

The fourth proportional to 736,879.20, 1,105,318.80 and 381,775.20 is: 572,662.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,879.20 : 1,105,318.80 = 381,775.20 : x
  2. Step 2: Convert to fraction form
    736,879.20/1,105,318.80 = 381,775.20/x
  3. Step 3: Cross multiply
    736,879.20x = 1,105,318.80 × 381,775.20
  4. Step 4: Simplify right side
    736,879.20x = 421,983,305,933.76
  5. Step 5: Solve for x
    x = 421,983,305,933.76/736,879.20
  6. Step 6: Final answer
    x = 572,662.80

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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.