Home / 772,990.80-1,159,486.20-744,997.20

Finding the Fourth Proportional to 772,990.80, 1,159,486.20 and 744,997.20

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Solution

The fourth proportional to 772,990.80, 1,159,486.20 and 744,997.20 is: 1,117,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,990.80 : 1,159,486.20 = 744,997.20 : x
  2. Step 2: Convert to fraction form
    772,990.80/1,159,486.20 = 744,997.20/x
  3. Step 3: Cross multiply
    772,990.80x = 1,159,486.20 × 744,997.20
  4. Step 4: Simplify right side
    772,990.80x = 863,813,972,438.64
  5. Step 5: Solve for x
    x = 863,813,972,438.64/772,990.80
  6. Step 6: Final answer
    x = 1,117,495.80

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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.