Home / 818,288.28-1,129,157.10-455,745.96

Finding the Fourth Proportional to 818,288.28, 1,129,157.10 and 455,745.96

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Solution

The fourth proportional to 818,288.28, 1,129,157.10 and 455,745.96 is: 628,884.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,288.28 : 1,129,157.10 = 455,745.96 : x
  2. Step 2: Convert to fraction form
    818,288.28/1,129,157.10 = 455,745.96/x
  3. Step 3: Cross multiply
    818,288.28x = 1,129,157.10 × 455,745.96
  4. Step 4: Simplify right side
    818,288.28x = 514,608,786,530.32
  5. Step 5: Solve for x
    x = 514,608,786,530.32/818,288.28
  6. Step 6: Final answer
    x = 628,884.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.