Home / 812,843.03-1,121,709.33-450,259.29

Finding the Fourth Proportional to 812,843.03, 1,121,709.33 and 450,259.29

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Solution

The fourth proportional to 812,843.03, 1,121,709.33 and 450,259.29 is: 621,350.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,843.03 : 1,121,709.33 = 450,259.29 : x
  2. Step 2: Convert to fraction form
    812,843.03/1,121,709.33 = 450,259.29/x
  3. Step 3: Cross multiply
    812,843.03x = 1,121,709.33 × 450,259.29
  4. Step 4: Simplify right side
    812,843.03x = 505,060,046,512.18
  5. Step 5: Solve for x
    x = 505,060,046,512.18/812,843.03
  6. Step 6: Final answer
    x = 621,350.03

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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.