Home / 818,247.83-1,227,564.86-257,282.33

Finding the Fourth Proportional to 818,247.83, 1,227,564.86 and 257,282.33

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Solution

The fourth proportional to 818,247.83, 1,227,564.86 and 257,282.33 is: 385,984.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,247.83 : 1,227,564.86 = 257,282.33 : x
  2. Step 2: Convert to fraction form
    818,247.83/1,227,564.86 = 257,282.33/x
  3. Step 3: Cross multiply
    818,247.83x = 1,227,564.86 × 257,282.33
  4. Step 4: Simplify right side
    818,247.83x = 315,830,739,982.69
  5. Step 5: Solve for x
    x = 315,830,739,982.69/818,247.83
  6. Step 6: Final answer
    x = 385,984.21

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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.