Home / 705,803.26-1,058,109.62-306,143

Finding the Fourth Proportional to 705,803.26, 1,058,109.62 and 306,143

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Solution

The fourth proportional to 705,803.26, 1,058,109.62 and 306,143 is: 458,956.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,803.26 : 1,058,109.62 = 306,143 : x
  2. Step 2: Convert to fraction form
    705,803.26/1,058,109.62 = 306,143/x
  3. Step 3: Cross multiply
    705,803.26x = 1,058,109.62 × 306,143
  4. Step 4: Simplify right side
    705,803.26x = 323,932,853,395.66
  5. Step 5: Solve for x
    x = 323,932,853,395.66/705,803.26
  6. Step 6: Final answer
    x = 458,956.30

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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.