Home / 1,211,011.75-1,815,886.88-571,143.67

Finding the Fourth Proportional to 1,211,011.75, 1,815,886.88 and 571,143.67

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Solution

The fourth proportional to 1,211,011.75, 1,815,886.88 and 571,143.67 is: 856,418.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,011.75 : 1,815,886.88 = 571,143.67 : x
  2. Step 2: Convert to fraction form
    1,211,011.75/1,815,886.88 = 571,143.67/x
  3. Step 3: Cross multiply
    1,211,011.75x = 1,815,886.88 × 571,143.67
  4. Step 4: Simplify right side
    1,211,011.75x = 1,037,132,296,948.05
  5. Step 5: Solve for x
    x = 1,037,132,296,948.05/1,211,011.75
  6. Step 6: Final answer
    x = 856,418.03

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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.