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Finding the Fourth Proportional to 922,341.20, 1,383,706.20 and 291,318.80

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Solution

The fourth proportional to 922,341.20, 1,383,706.20 and 291,318.80 is: 437,039.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,341.20 : 1,383,706.20 = 291,318.80 : x
  2. Step 2: Convert to fraction form
    922,341.20/1,383,706.20 = 291,318.80/x
  3. Step 3: Cross multiply
    922,341.20x = 1,383,706.20 × 291,318.80
  4. Step 4: Simplify right side
    922,341.20x = 403,099,629,736.56
  5. Step 5: Solve for x
    x = 403,099,629,736.56/922,341.20
  6. Step 6: Final answer
    x = 437,039.60

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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.