Home / 1,917,158.51-2,876,131.43-779,917.82

Finding the Fourth Proportional to 1,917,158.51, 2,876,131.43 and 779,917.82

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Solution

The fourth proportional to 1,917,158.51, 2,876,131.43 and 779,917.82 is: 1,170,036.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,158.51 : 2,876,131.43 = 779,917.82 : x
  2. Step 2: Convert to fraction form
    1,917,158.51/2,876,131.43 = 779,917.82/x
  3. Step 3: Cross multiply
    1,917,158.51x = 2,876,131.43 × 779,917.82
  4. Step 4: Simplify right side
    1,917,158.51x = 2,243,146,136,638.84
  5. Step 5: Solve for x
    x = 2,243,146,136,638.84/1,917,158.51
  6. Step 6: Final answer
    x = 1,170,036.87

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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.