Home / 705,072.88-1,057,339.43-300,011.72

Finding the Fourth Proportional to 705,072.88, 1,057,339.43 and 300,011.72

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Solution

The fourth proportional to 705,072.88, 1,057,339.43 and 300,011.72 is: 449,902.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,072.88 : 1,057,339.43 = 300,011.72 : x
  2. Step 2: Convert to fraction form
    705,072.88/1,057,339.43 = 300,011.72/x
  3. Step 3: Cross multiply
    705,072.88x = 1,057,339.43 × 300,011.72
  4. Step 4: Simplify right side
    705,072.88x = 317,214,221,018.12
  5. Step 5: Solve for x
    x = 317,214,221,018.12/705,072.88
  6. Step 6: Final answer
    x = 449,902.74

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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.