Home / 789,415.20-1,184,120.28-283,975.20

Finding the Fourth Proportional to 789,415.20, 1,184,120.28 and 283,975.20

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Solution

The fourth proportional to 789,415.20, 1,184,120.28 and 283,975.20 is: 425,961.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,415.20 : 1,184,120.28 = 283,975.20 : x
  2. Step 2: Convert to fraction form
    789,415.20/1,184,120.28 = 283,975.20/x
  3. Step 3: Cross multiply
    789,415.20x = 1,184,120.28 × 283,975.20
  4. Step 4: Simplify right side
    789,415.20x = 336,260,793,337.06
  5. Step 5: Solve for x
    x = 336,260,793,337.06/789,415.20
  6. Step 6: Final answer
    x = 425,961.89

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Half scale
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Double scale
Find fourth proportional to 789,416.20, 1,184,121.78 and 283,976.20
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.