Home / 1,340,136.70-2,010,205.05-1,274,818.30

Finding the Fourth Proportional to 1,340,136.70, 2,010,205.05 and 1,274,818.30

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Solution

The fourth proportional to 1,340,136.70, 2,010,205.05 and 1,274,818.30 is: 1,912,227.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,136.70 : 2,010,205.05 = 1,274,818.30 : x
  2. Step 2: Convert to fraction form
    1,340,136.70/2,010,205.05 = 1,274,818.30/x
  3. Step 3: Cross multiply
    1,340,136.70x = 2,010,205.05 × 1,274,818.30
  4. Step 4: Simplify right side
    1,340,136.70x = 2,562,646,184,492.42
  5. Step 5: Solve for x
    x = 2,562,646,184,492.42/1,340,136.70
  6. Step 6: Final answer
    x = 1,912,227.45

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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.