Home / 812,301.21-1,120,962.24-449,717.27

Finding the Fourth Proportional to 812,301.21, 1,120,962.24 and 449,717.27

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Solution

The fourth proportional to 812,301.21, 1,120,962.24 and 449,717.27 is: 620,602.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,301.21 : 1,120,962.24 = 449,717.27 : x
  2. Step 2: Convert to fraction form
    812,301.21/1,120,962.24 = 449,717.27/x
  3. Step 3: Cross multiply
    812,301.21x = 1,120,962.24 × 449,717.27
  4. Step 4: Simplify right side
    812,301.21x = 504,116,072,741.07
  5. Step 5: Solve for x
    x = 504,116,072,741.07/812,301.21
  6. Step 6: Final answer
    x = 620,602.39

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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.