Home / 885,288.80-1,326,183.60-485,213.60

Finding the Fourth Proportional to 885,288.80, 1,326,183.60 and 485,213.60

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Solution

The fourth proportional to 885,288.80, 1,326,183.60 and 485,213.60 is: 726,861.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,288.80 : 1,326,183.60 = 485,213.60 : x
  2. Step 2: Convert to fraction form
    885,288.80/1,326,183.60 = 485,213.60/x
  3. Step 3: Cross multiply
    885,288.80x = 1,326,183.60 × 485,213.60
  4. Step 4: Simplify right side
    885,288.80x = 643,482,318,816.96
  5. Step 5: Solve for x
    x = 643,482,318,816.96/885,288.80
  6. Step 6: Final answer
    x = 726,861.47

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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.