Home / 807,789.75-1,114,704.27-445,212.48

Finding the Fourth Proportional to 807,789.75, 1,114,704.27 and 445,212.48

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Solution

The fourth proportional to 807,789.75, 1,114,704.27 and 445,212.48 is: 614,368.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,789.75 : 1,114,704.27 = 445,212.48 : x
  2. Step 2: Convert to fraction form
    807,789.75/1,114,704.27 = 445,212.48/x
  3. Step 3: Cross multiply
    807,789.75x = 1,114,704.27 × 445,212.48
  4. Step 4: Simplify right side
    807,789.75x = 496,280,252,513.29
  5. Step 5: Solve for x
    x = 496,280,252,513.29/807,789.75
  6. Step 6: Final answer
    x = 614,368.10

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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.