Home / 810,589.52-1,118,578.74-447,994.64

Finding the Fourth Proportional to 810,589.52, 1,118,578.74 and 447,994.64

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Solution

The fourth proportional to 810,589.52, 1,118,578.74 and 447,994.64 is: 618,213.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,589.52 : 1,118,578.74 = 447,994.64 : x
  2. Step 2: Convert to fraction form
    810,589.52/1,118,578.74 = 447,994.64/x
  3. Step 3: Cross multiply
    810,589.52x = 1,118,578.74 × 447,994.64
  4. Step 4: Simplify right side
    810,589.52x = 501,117,279,937.95
  5. Step 5: Solve for x
    x = 501,117,279,937.95/810,589.52
  6. Step 6: Final answer
    x = 618,213.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.