Home / 1,581,055.86-2,181,856.62-855,903.04

Finding the Fourth Proportional to 1,581,055.86, 2,181,856.62 and 855,903.04

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Solution

The fourth proportional to 1,581,055.86, 2,181,856.62 and 855,903.04 is: 1,181,145.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,055.86 : 2,181,856.62 = 855,903.04 : x
  2. Step 2: Convert to fraction form
    1,581,055.86/2,181,856.62 = 855,903.04/x
  3. Step 3: Cross multiply
    1,581,055.86x = 2,181,856.62 × 855,903.04
  4. Step 4: Simplify right side
    1,581,055.86x = 1,867,457,713,902.13
  5. Step 5: Solve for x
    x = 1,867,457,713,902.13/1,581,055.86
  6. Step 6: Final answer
    x = 1,181,145.94

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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.