Home / 809,921.57-1,117,835.24-465,730.80

Finding the Fourth Proportional to 809,921.57, 1,117,835.24 and 465,730.80

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Solution

The fourth proportional to 809,921.57, 1,117,835.24 and 465,730.80 is: 642,791.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,921.57 : 1,117,835.24 = 465,730.80 : x
  2. Step 2: Convert to fraction form
    809,921.57/1,117,835.24 = 465,730.80/x
  3. Step 3: Cross multiply
    809,921.57x = 1,117,835.24 × 465,730.80
  4. Step 4: Simplify right side
    809,921.57x = 520,610,294,072.86
  5. Step 5: Solve for x
    x = 520,610,294,072.86/809,921.57
  6. Step 6: Final answer
    x = 642,791.00

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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.