Home / 809,147.92-1,115,992.96-518,787.24

Finding the Fourth Proportional to 809,147.92, 1,115,992.96 and 518,787.24

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Solution

The fourth proportional to 809,147.92, 1,115,992.96 and 518,787.24 is: 715,521.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,147.92 : 1,115,992.96 = 518,787.24 : x
  2. Step 2: Convert to fraction form
    809,147.92/1,115,992.96 = 518,787.24/x
  3. Step 3: Cross multiply
    809,147.92x = 1,115,992.96 × 518,787.24
  4. Step 4: Simplify right side
    809,147.92x = 578,962,907,577.83
  5. Step 5: Solve for x
    x = 578,962,907,577.83/809,147.92
  6. Step 6: Final answer
    x = 715,521.72

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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.