Home / 918,579.11-1,374,920.64-491,046.12

Finding the Fourth Proportional to 918,579.11, 1,374,920.64 and 491,046.12

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Solution

The fourth proportional to 918,579.11, 1,374,920.64 and 491,046.12 is: 734,993.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,579.11 : 1,374,920.64 = 491,046.12 : x
  2. Step 2: Convert to fraction form
    918,579.11/1,374,920.64 = 491,046.12/x
  3. Step 3: Cross multiply
    918,579.11x = 1,374,920.64 × 491,046.12
  4. Step 4: Simplify right side
    918,579.11x = 675,149,445,579.92
  5. Step 5: Solve for x
    x = 675,149,445,579.92/918,579.11
  6. Step 6: Final answer
    x = 734,993.25

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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.