Home / 810,162.12-1,117,989.66-465,972.06

Finding the Fourth Proportional to 810,162.12, 1,117,989.66 and 465,972.06

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Solution

The fourth proportional to 810,162.12, 1,117,989.66 and 465,972.06 is: 643,021.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,162.12 : 1,117,989.66 = 465,972.06 : x
  2. Step 2: Convert to fraction form
    810,162.12/1,117,989.66 = 465,972.06/x
  3. Step 3: Cross multiply
    810,162.12x = 1,117,989.66 × 465,972.06
  4. Step 4: Simplify right side
    810,162.12x = 520,951,944,928.90
  5. Step 5: Solve for x
    x = 520,951,944,928.90/810,162.12
  6. Step 6: Final answer
    x = 643,021.85

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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.