Home / 720,415.98-1,081,181.79-271,545.21

Finding the Fourth Proportional to 720,415.98, 1,081,181.79 and 271,545.21

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Solution

The fourth proportional to 720,415.98, 1,081,181.79 and 271,545.21 is: 407,528.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,415.98 : 1,081,181.79 = 271,545.21 : x
  2. Step 2: Convert to fraction form
    720,415.98/1,081,181.79 = 271,545.21/x
  3. Step 3: Cross multiply
    720,415.98x = 1,081,181.79 × 271,545.21
  4. Step 4: Simplify right side
    720,415.98x = 293,589,736,213.73
  5. Step 5: Solve for x
    x = 293,589,736,213.73/720,415.98
  6. Step 6: Final answer
    x = 407,528.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.