Home / 812,649.51-1,121,466.26-450,079.54

Finding the Fourth Proportional to 812,649.51, 1,121,466.26 and 450,079.54

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Solution

The fourth proportional to 812,649.51, 1,121,466.26 and 450,079.54 is: 621,115.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,649.51 : 1,121,466.26 = 450,079.54 : x
  2. Step 2: Convert to fraction form
    812,649.51/1,121,466.26 = 450,079.54/x
  3. Step 3: Cross multiply
    812,649.51x = 1,121,466.26 × 450,079.54
  4. Step 4: Simplify right side
    812,649.51x = 504,749,016,747.85
  5. Step 5: Solve for x
    x = 504,749,016,747.85/812,649.51
  6. Step 6: Final answer
    x = 621,115.27

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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.