Home / 2,918,120.42-4,377,340.30-1,212,436.22

Finding the Fourth Proportional to 2,918,120.42, 4,377,340.30 and 1,212,436.22

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Solution

The fourth proportional to 2,918,120.42, 4,377,340.30 and 1,212,436.22 is: 1,818,720.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918,120.42 : 4,377,340.30 = 1,212,436.22 : x
  2. Step 2: Convert to fraction form
    2,918,120.42/4,377,340.30 = 1,212,436.22/x
  3. Step 3: Cross multiply
    2,918,120.42x = 4,377,340.30 × 1,212,436.22
  4. Step 4: Simplify right side
    2,918,120.42x = 5,307,245,934,897.93
  5. Step 5: Solve for x
    x = 5,307,245,934,897.93/2,918,120.42
  6. Step 6: Final answer
    x = 1,818,720.67

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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.