Home / 751,278.22-1,036,767.12-407,114.89

Finding the Fourth Proportional to 751,278.22, 1,036,767.12 and 407,114.89

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Solution

The fourth proportional to 751,278.22, 1,036,767.12 and 407,114.89 is: 561,820.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,278.22 : 1,036,767.12 = 407,114.89 : x
  2. Step 2: Convert to fraction form
    751,278.22/1,036,767.12 = 407,114.89/x
  3. Step 3: Cross multiply
    751,278.22x = 1,036,767.12 × 407,114.89
  4. Step 4: Simplify right side
    751,278.22x = 422,083,332,014.42
  5. Step 5: Solve for x
    x = 422,083,332,014.42/751,278.22
  6. Step 6: Final answer
    x = 561,820.27

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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.