Home / 1,400,528.80-2,100,793.20-691,940.80

Finding the Fourth Proportional to 1,400,528.80, 2,100,793.20 and 691,940.80

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Solution

The fourth proportional to 1,400,528.80, 2,100,793.20 and 691,940.80 is: 1,037,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,528.80 : 2,100,793.20 = 691,940.80 : x
  2. Step 2: Convert to fraction form
    1,400,528.80/2,100,793.20 = 691,940.80/x
  3. Step 3: Cross multiply
    1,400,528.80x = 2,100,793.20 × 691,940.80
  4. Step 4: Simplify right side
    1,400,528.80x = 1,453,624,527,442.56
  5. Step 5: Solve for x
    x = 1,453,624,527,442.56/1,400,528.80
  6. Step 6: Final answer
    x = 1,037,911.20

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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.