Home / 815,518.45-1,223,441.70-683,314.30

Finding the Fourth Proportional to 815,518.45, 1,223,441.70 and 683,314.30

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Solution

The fourth proportional to 815,518.45, 1,223,441.70 and 683,314.30 is: 1,025,108.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,518.45 : 1,223,441.70 = 683,314.30 : x
  2. Step 2: Convert to fraction form
    815,518.45/1,223,441.70 = 683,314.30/x
  3. Step 3: Cross multiply
    815,518.45x = 1,223,441.70 × 683,314.30
  4. Step 4: Simplify right side
    815,518.45x = 835,995,208,826.31
  5. Step 5: Solve for x
    x = 835,995,208,826.31/815,518.45
  6. Step 6: Final answer
    x = 1,025,108.88

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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.