Home / 772,111.80-1,158,110.10-322,716.60

Finding the Fourth Proportional to 772,111.80, 1,158,110.10 and 322,716.60

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Solution

The fourth proportional to 772,111.80, 1,158,110.10 and 322,716.60 is: 484,050.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,111.80 : 1,158,110.10 = 322,716.60 : x
  2. Step 2: Convert to fraction form
    772,111.80/1,158,110.10 = 322,716.60/x
  3. Step 3: Cross multiply
    772,111.80x = 1,158,110.10 × 322,716.60
  4. Step 4: Simplify right side
    772,111.80x = 373,741,353,897.66
  5. Step 5: Solve for x
    x = 373,741,353,897.66/772,111.80
  6. Step 6: Final answer
    x = 484,050.83

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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.