Home / 724,015.90-1,086,412.65-303,334.30

Finding the Fourth Proportional to 724,015.90, 1,086,412.65 and 303,334.30

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Solution

The fourth proportional to 724,015.90, 1,086,412.65 and 303,334.30 is: 455,164.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,015.90 : 1,086,412.65 = 303,334.30 : x
  2. Step 2: Convert to fraction form
    724,015.90/1,086,412.65 = 303,334.30/x
  3. Step 3: Cross multiply
    724,015.90x = 1,086,412.65 × 303,334.30
  4. Step 4: Simplify right side
    724,015.90x = 329,546,220,698.90
  5. Step 5: Solve for x
    x = 329,546,220,698.90/724,015.90
  6. Step 6: Final answer
    x = 455,164.34

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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.