Home / 1,232,221.20-1,848,331.80-345,757.20

Finding the Fourth Proportional to 1,232,221.20, 1,848,331.80 and 345,757.20

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Solution

The fourth proportional to 1,232,221.20, 1,848,331.80 and 345,757.20 is: 518,635.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232,221.20 : 1,848,331.80 = 345,757.20 : x
  2. Step 2: Convert to fraction form
    1,232,221.20/1,848,331.80 = 345,757.20/x
  3. Step 3: Cross multiply
    1,232,221.20x = 1,848,331.80 × 345,757.20
  4. Step 4: Simplify right side
    1,232,221.20x = 639,074,027,838.96
  5. Step 5: Solve for x
    x = 639,074,027,838.96/1,232,221.20
  6. Step 6: Final answer
    x = 518,635.80

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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.