Home / 3,620,689.96-5,428,987.81-1,191,185.77

Finding the Fourth Proportional to 3,620,689.96, 5,428,987.81 and 1,191,185.77

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Solution

The fourth proportional to 3,620,689.96, 5,428,987.81 and 1,191,185.77 is: 1,786,105.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620,689.96 : 5,428,987.81 = 1,191,185.77 : x
  2. Step 2: Convert to fraction form
    3,620,689.96/5,428,987.81 = 1,191,185.77/x
  3. Step 3: Cross multiply
    3,620,689.96x = 5,428,987.81 × 1,191,185.77
  4. Step 4: Simplify right side
    3,620,689.96x = 6,466,933,024,775.46
  5. Step 5: Solve for x
    x = 6,466,933,024,775.46/3,620,689.96
  6. Step 6: Final answer
    x = 1,786,105.16

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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.