Home / 2,191,817.54-3,287,989.84-771,578.66

Finding the Fourth Proportional to 2,191,817.54, 3,287,989.84 and 771,578.66

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Solution

The fourth proportional to 2,191,817.54, 3,287,989.84 and 771,578.66 is: 1,157,460.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,817.54 : 3,287,989.84 = 771,578.66 : x
  2. Step 2: Convert to fraction form
    2,191,817.54/3,287,989.84 = 771,578.66/x
  3. Step 3: Cross multiply
    2,191,817.54x = 3,287,989.84 × 771,578.66
  4. Step 4: Simplify right side
    2,191,817.54x = 2,536,942,794,840.81
  5. Step 5: Solve for x
    x = 2,536,942,794,840.81/2,191,817.54
  6. Step 6: Final answer
    x = 1,157,460.76

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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.