Home / 808,078.73-1,115,165.53-445,517.87

Finding the Fourth Proportional to 808,078.73, 1,115,165.53 and 445,517.87

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Solution

The fourth proportional to 808,078.73, 1,115,165.53 and 445,517.87 is: 614,823.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,078.73 : 1,115,165.53 = 445,517.87 : x
  2. Step 2: Convert to fraction form
    808,078.73/1,115,165.53 = 445,517.87/x
  3. Step 3: Cross multiply
    808,078.73x = 1,115,165.53 × 445,517.87
  4. Step 4: Simplify right side
    808,078.73x = 496,826,169,395.43
  5. Step 5: Solve for x
    x = 496,826,169,395.43/808,078.73
  6. Step 6: Final answer
    x = 614,823.97

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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.