Home / 945,850.40-1,419,121.20-385,287.20

Finding the Fourth Proportional to 945,850.40, 1,419,121.20 and 385,287.20

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Solution

The fourth proportional to 945,850.40, 1,419,121.20 and 385,287.20 is: 578,071.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,850.40 : 1,419,121.20 = 385,287.20 : x
  2. Step 2: Convert to fraction form
    945,850.40/1,419,121.20 = 385,287.20/x
  3. Step 3: Cross multiply
    945,850.40x = 1,419,121.20 × 385,287.20
  4. Step 4: Simplify right side
    945,850.40x = 546,769,233,608.64
  5. Step 5: Solve for x
    x = 546,769,233,608.64/945,850.40
  6. Step 6: Final answer
    x = 578,071.58

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Double scale
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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.