Home / 705,991.63-1,058,731.09-386,379.71

Finding the Fourth Proportional to 705,991.63, 1,058,731.09 and 386,379.71

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Solution

The fourth proportional to 705,991.63, 1,058,731.09 and 386,379.71 is: 579,429.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,991.63 : 1,058,731.09 = 386,379.71 : x
  2. Step 2: Convert to fraction form
    705,991.63/1,058,731.09 = 386,379.71/x
  3. Step 3: Cross multiply
    705,991.63x = 1,058,731.09 × 386,379.71
  4. Step 4: Simplify right side
    705,991.63x = 409,072,211,522.18
  5. Step 5: Solve for x
    x = 409,072,211,522.18/705,991.63
  6. Step 6: Final answer
    x = 579,429.27

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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.