Home / 1,213,145.70-1,819,951.82-465,133.38

Finding the Fourth Proportional to 1,213,145.70, 1,819,951.82 and 465,133.38

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Solution

The fourth proportional to 1,213,145.70, 1,819,951.82 and 465,133.38 is: 697,789.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,145.70 : 1,819,951.82 = 465,133.38 : x
  2. Step 2: Convert to fraction form
    1,213,145.70/1,819,951.82 = 465,133.38/x
  3. Step 3: Cross multiply
    1,213,145.70x = 1,819,951.82 × 465,133.38
  4. Step 4: Simplify right side
    1,213,145.70x = 846,520,341,473.75
  5. Step 5: Solve for x
    x = 846,520,341,473.75/1,213,145.70
  6. Step 6: Final answer
    x = 697,789.51

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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.