Home / 789,250.80-1,183,876.20-290,809.20

Finding the Fourth Proportional to 789,250.80, 1,183,876.20 and 290,809.20

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Solution

The fourth proportional to 789,250.80, 1,183,876.20 and 290,809.20 is: 436,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,250.80 : 1,183,876.20 = 290,809.20 : x
  2. Step 2: Convert to fraction form
    789,250.80/1,183,876.20 = 290,809.20/x
  3. Step 3: Cross multiply
    789,250.80x = 1,183,876.20 × 290,809.20
  4. Step 4: Simplify right side
    789,250.80x = 344,282,090,621.04
  5. Step 5: Solve for x
    x = 344,282,090,621.04/789,250.80
  6. Step 6: Final answer
    x = 436,213.80

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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.