Home / 812,051.42-1,120,595.68-449,453.64

Finding the Fourth Proportional to 812,051.42, 1,120,595.68 and 449,453.64

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Solution

The fourth proportional to 812,051.42, 1,120,595.68 and 449,453.64 is: 620,226.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,051.42 : 1,120,595.68 = 449,453.64 : x
  2. Step 2: Convert to fraction form
    812,051.42/1,120,595.68 = 449,453.64/x
  3. Step 3: Cross multiply
    812,051.42x = 1,120,595.68 × 449,453.64
  4. Step 4: Simplify right side
    812,051.42x = 503,655,807,344.28
  5. Step 5: Solve for x
    x = 503,655,807,344.28/812,051.42
  6. Step 6: Final answer
    x = 620,226.50

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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.