Home / 705,409.25-1,057,843.10-300,344.65

Finding the Fourth Proportional to 705,409.25, 1,057,843.10 and 300,344.65

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Solution

The fourth proportional to 705,409.25, 1,057,843.10 and 300,344.65 is: 450,401.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,409.25 : 1,057,843.10 = 300,344.65 : x
  2. Step 2: Convert to fraction form
    705,409.25/1,057,843.10 = 300,344.65/x
  3. Step 3: Cross multiply
    705,409.25x = 1,057,843.10 × 300,344.65
  4. Step 4: Simplify right side
    705,409.25x = 317,717,513,730.67
  5. Step 5: Solve for x
    x = 317,717,513,730.67/705,409.25
  6. Step 6: Final answer
    x = 450,401.69

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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.