Home / 810,321.36-1,118,239.20-447,770.22

Finding the Fourth Proportional to 810,321.36, 1,118,239.20 and 447,770.22

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Solution

The fourth proportional to 810,321.36, 1,118,239.20 and 447,770.22 is: 617,920.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,321.36 : 1,118,239.20 = 447,770.22 : x
  2. Step 2: Convert to fraction form
    810,321.36/1,118,239.20 = 447,770.22/x
  3. Step 3: Cross multiply
    810,321.36x = 1,118,239.20 × 447,770.22
  4. Step 4: Simplify right side
    810,321.36x = 500,714,212,596.62
  5. Step 5: Solve for x
    x = 500,714,212,596.62/810,321.36
  6. Step 6: Final answer
    x = 617,920.54

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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.