Home / 812,110.86-1,120,699.42-449,526.94

Finding the Fourth Proportional to 812,110.86, 1,120,699.42 and 449,526.94

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Solution

The fourth proportional to 812,110.86, 1,120,699.42 and 449,526.94 is: 620,339.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,110.86 : 1,120,699.42 = 449,526.94 : x
  2. Step 2: Convert to fraction form
    812,110.86/1,120,699.42 = 449,526.94/x
  3. Step 3: Cross multiply
    812,110.86x = 1,120,699.42 × 449,526.94
  4. Step 4: Simplify right side
    812,110.86x = 503,784,580,932.38
  5. Step 5: Solve for x
    x = 503,784,580,932.38/812,110.86
  6. Step 6: Final answer
    x = 620,339.67

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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.