Home / 810,632.58-1,215,763.79-305,246.85

Finding the Fourth Proportional to 810,632.58, 1,215,763.79 and 305,246.85

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Solution

The fourth proportional to 810,632.58, 1,215,763.79 and 305,246.85 is: 457,800.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,632.58 : 1,215,763.79 = 305,246.85 : x
  2. Step 2: Convert to fraction form
    810,632.58/1,215,763.79 = 305,246.85/x
  3. Step 3: Cross multiply
    810,632.58x = 1,215,763.79 × 305,246.85
  4. Step 4: Simplify right side
    810,632.58x = 371,108,065,715.33
  5. Step 5: Solve for x
    x = 371,108,065,715.33/810,632.58
  6. Step 6: Final answer
    x = 457,800.58

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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.