Home / 810,452.22-1,118,416.95-447,900.54

Finding the Fourth Proportional to 810,452.22, 1,118,416.95 and 447,900.54

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Solution

The fourth proportional to 810,452.22, 1,118,416.95 and 447,900.54 is: 618,098.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,452.22 : 1,118,416.95 = 447,900.54 : x
  2. Step 2: Convert to fraction form
    810,452.22/1,118,416.95 = 447,900.54/x
  3. Step 3: Cross multiply
    810,452.22x = 1,118,416.95 × 447,900.54
  4. Step 4: Simplify right side
    810,452.22x = 500,939,555,850.15
  5. Step 5: Solve for x
    x = 500,939,555,850.15/810,452.22
  6. Step 6: Final answer
    x = 618,098.81

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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.