Home / 1,121,039.72-1,547,067.49-611,774.90

Finding the Fourth Proportional to 1,121,039.72, 1,547,067.49 and 611,774.90

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Solution

The fourth proportional to 1,121,039.72, 1,547,067.49 and 611,774.90 is: 844,267.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,039.72 : 1,547,067.49 = 611,774.90 : x
  2. Step 2: Convert to fraction form
    1,121,039.72/1,547,067.49 = 611,774.90/x
  3. Step 3: Cross multiply
    1,121,039.72x = 1,547,067.49 × 611,774.90
  4. Step 4: Simplify right side
    1,121,039.72x = 946,457,049,723.23
  5. Step 5: Solve for x
    x = 946,457,049,723.23/1,121,039.72
  6. Step 6: Final answer
    x = 844,267.19

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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.