Home / 1,211,012.75-1,815,888.38-571,144.67

Finding the Fourth Proportional to 1,211,012.75, 1,815,888.38 and 571,144.67

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Solution

The fourth proportional to 1,211,012.75, 1,815,888.38 and 571,144.67 is: 856,419.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,012.75 : 1,815,888.38 = 571,144.67 : x
  2. Step 2: Convert to fraction form
    1,211,012.75/1,815,888.38 = 571,144.67/x
  3. Step 3: Cross multiply
    1,211,012.75x = 1,815,888.38 × 571,144.67
  4. Step 4: Simplify right side
    1,211,012.75x = 1,037,134,969,551.93
  5. Step 5: Solve for x
    x = 1,037,134,969,551.93/1,211,012.75
  6. Step 6: Final answer
    x = 856,419.53

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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.