Home / 751,419.75-1,036,962.90-449,613.75

Finding the Fourth Proportional to 751,419.75, 1,036,962.90 and 449,613.75

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Solution

The fourth proportional to 751,419.75, 1,036,962.90 and 449,613.75 is: 620,469.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,419.75 : 1,036,962.90 = 449,613.75 : x
  2. Step 2: Convert to fraction form
    751,419.75/1,036,962.90 = 449,613.75/x
  3. Step 3: Cross multiply
    751,419.75x = 1,036,962.90 × 449,613.75
  4. Step 4: Simplify right side
    751,419.75x = 466,232,778,079.88
  5. Step 5: Solve for x
    x = 466,232,778,079.88/751,419.75
  6. Step 6: Final answer
    x = 620,469.16

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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.