Home / 1,891,120.50-2,609,746.29-1,212,057

Finding the Fourth Proportional to 1,891,120.50, 2,609,746.29 and 1,212,057

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Solution

The fourth proportional to 1,891,120.50, 2,609,746.29 and 1,212,057 is: 1,672,638.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891,120.50 : 2,609,746.29 = 1,212,057 : x
  2. Step 2: Convert to fraction form
    1,891,120.50/2,609,746.29 = 1,212,057/x
  3. Step 3: Cross multiply
    1,891,120.50x = 2,609,746.29 × 1,212,057
  4. Step 4: Simplify right side
    1,891,120.50x = 3,163,161,259,018.53
  5. Step 5: Solve for x
    x = 3,163,161,259,018.53/1,891,120.50
  6. Step 6: Final answer
    x = 1,672,638.66

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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.