Home / 1,917,339.80-2,646,887.67-1,192,421.12

Finding the Fourth Proportional to 1,917,339.80, 2,646,887.67 and 1,192,421.12

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Solution

The fourth proportional to 1,917,339.80, 2,646,887.67 and 1,192,421.12 is: 1,646,137.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,339.80 : 2,646,887.67 = 1,192,421.12 : x
  2. Step 2: Convert to fraction form
    1,917,339.80/2,646,887.67 = 1,192,421.12/x
  3. Step 3: Cross multiply
    1,917,339.80x = 2,646,887.67 × 1,192,421.12
  4. Step 4: Simplify right side
    1,917,339.80x = 3,156,204,746,741.15
  5. Step 5: Solve for x
    x = 3,156,204,746,741.15/1,917,339.80
  6. Step 6: Final answer
    x = 1,646,137.40

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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.