Home / 1,340,339.20-2,010,314.40-393,611.20

Finding the Fourth Proportional to 1,340,339.20, 2,010,314.40 and 393,611.20

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Solution

The fourth proportional to 1,340,339.20, 2,010,314.40 and 393,611.20 is: 590,359.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,339.20 : 2,010,314.40 = 393,611.20 : x
  2. Step 2: Convert to fraction form
    1,340,339.20/2,010,314.40 = 393,611.20/x
  3. Step 3: Cross multiply
    1,340,339.20x = 2,010,314.40 × 393,611.20
  4. Step 4: Simplify right side
    1,340,339.20x = 791,282,263,361.28
  5. Step 5: Solve for x
    x = 791,282,263,361.28/1,340,339.20
  6. Step 6: Final answer
    x = 590,359.71

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1.5x scale

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.