Home / 1,212,221.88-1,673,583.84-1,077,714.36

Finding the Fourth Proportional to 1,212,221.88, 1,673,583.84 and 1,077,714.36

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Solution

The fourth proportional to 1,212,221.88, 1,673,583.84 and 1,077,714.36 is: 1,487,883.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,221.88 : 1,673,583.84 = 1,077,714.36 : x
  2. Step 2: Convert to fraction form
    1,212,221.88/1,673,583.84 = 1,077,714.36/x
  3. Step 3: Cross multiply
    1,212,221.88x = 1,673,583.84 × 1,077,714.36
  4. Step 4: Simplify right side
    1,212,221.88x = 1,803,645,337,031.94
  5. Step 5: Solve for x
    x = 1,803,645,337,031.94/1,212,221.88
  6. Step 6: Final answer
    x = 1,487,883.83

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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.