Home / 1,581,055.95-2,181,856.77-855,903.15

Finding the Fourth Proportional to 1,581,055.95, 2,181,856.77 and 855,903.15

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Solution

The fourth proportional to 1,581,055.95, 2,181,856.77 and 855,903.15 is: 1,181,146.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,055.95 : 2,181,856.77 = 855,903.15 : x
  2. Step 2: Convert to fraction form
    1,581,055.95/2,181,856.77 = 855,903.15/x
  3. Step 3: Cross multiply
    1,581,055.95x = 2,181,856.77 × 855,903.15
  4. Step 4: Simplify right side
    1,581,055.95x = 1,867,458,082,291.83
  5. Step 5: Solve for x
    x = 1,867,458,082,291.83/1,581,055.95
  6. Step 6: Final answer
    x = 1,181,146.11

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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.