Home / 705,376.80-1,057,731.36-273,296.64

Finding the Fourth Proportional to 705,376.80, 1,057,731.36 and 273,296.64

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Solution

The fourth proportional to 705,376.80, 1,057,731.36 and 273,296.64 is: 409,815.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,376.80 : 1,057,731.36 = 273,296.64 : x
  2. Step 2: Convert to fraction form
    705,376.80/1,057,731.36 = 273,296.64/x
  3. Step 3: Cross multiply
    705,376.80x = 1,057,731.36 × 273,296.64
  4. Step 4: Simplify right side
    705,376.80x = 289,074,426,710.63
  5. Step 5: Solve for x
    x = 289,074,426,710.63/705,376.80
  6. Step 6: Final answer
    x = 409,815.61

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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.