Home / 1,581,054.07-2,181,855.35-855,901.79

Finding the Fourth Proportional to 1,581,054.07, 2,181,855.35 and 855,901.79

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Solution

The fourth proportional to 1,581,054.07, 2,181,855.35 and 855,901.79 is: 1,181,144.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,054.07 : 2,181,855.35 = 855,901.79 : x
  2. Step 2: Convert to fraction form
    1,581,054.07/2,181,855.35 = 855,901.79/x
  3. Step 3: Cross multiply
    1,581,054.07x = 2,181,855.35 × 855,901.79
  4. Step 4: Simplify right side
    1,581,054.07x = 1,867,453,898,998.51
  5. Step 5: Solve for x
    x = 1,867,453,898,998.51/1,581,054.07
  6. Step 6: Final answer
    x = 1,181,144.87

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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.