Home / 789,439.80-1,184,159.70-290,998.20

Finding the Fourth Proportional to 789,439.80, 1,184,159.70 and 290,998.20

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Solution

The fourth proportional to 789,439.80, 1,184,159.70 and 290,998.20 is: 436,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,439.80 : 1,184,159.70 = 290,998.20 : x
  2. Step 2: Convert to fraction form
    789,439.80/1,184,159.70 = 290,998.20/x
  3. Step 3: Cross multiply
    789,439.80x = 1,184,159.70 × 290,998.20
  4. Step 4: Simplify right side
    789,439.80x = 344,588,341,212.54
  5. Step 5: Solve for x
    x = 344,588,341,212.54/789,439.80
  6. Step 6: Final answer
    x = 436,497.30

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Half scale
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Double scale
Find fourth proportional to 789,440.80, 1,184,161.20 and 290,999.20
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.