Home / 818,019.68-1,227,153.36-257,001.44

Finding the Fourth Proportional to 818,019.68, 1,227,153.36 and 257,001.44

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Solution

The fourth proportional to 818,019.68, 1,227,153.36 and 257,001.44 is: 385,541.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,019.68 : 1,227,153.36 = 257,001.44 : x
  2. Step 2: Convert to fraction form
    818,019.68/1,227,153.36 = 257,001.44/x
  3. Step 3: Cross multiply
    818,019.68x = 1,227,153.36 × 257,001.44
  4. Step 4: Simplify right side
    818,019.68x = 315,380,180,620.84
  5. Step 5: Solve for x
    x = 315,380,180,620.84/818,019.68
  6. Step 6: Final answer
    x = 385,541.07

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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.