Home / 1,581,055.07-2,181,856.73-855,902.79

Finding the Fourth Proportional to 1,581,055.07, 2,181,856.73 and 855,902.79

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Solution

The fourth proportional to 1,581,055.07, 2,181,856.73 and 855,902.79 is: 1,181,146.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,055.07 : 2,181,856.73 = 855,902.79 : x
  2. Step 2: Convert to fraction form
    1,581,055.07/2,181,856.73 = 855,902.79/x
  3. Step 3: Cross multiply
    1,581,055.07x = 2,181,856.73 × 855,902.79
  4. Step 4: Simplify right side
    1,581,055.07x = 1,867,457,262,587.28
  5. Step 5: Solve for x
    x = 1,867,457,262,587.28/1,581,055.07
  6. Step 6: Final answer
    x = 1,181,146.25

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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.