Home / 821,453.45-1,232,621.30-342,012.23

Finding the Fourth Proportional to 821,453.45, 1,232,621.30 and 342,012.23

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Solution

The fourth proportional to 821,453.45, 1,232,621.30 and 342,012.23 is: 513,202.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,453.45 : 1,232,621.30 = 342,012.23 : x
  2. Step 2: Convert to fraction form
    821,453.45/1,232,621.30 = 342,012.23/x
  3. Step 3: Cross multiply
    821,453.45x = 1,232,621.30 × 342,012.23
  4. Step 4: Simplify right side
    821,453.45x = 421,571,559,558.50
  5. Step 5: Solve for x
    x = 421,571,559,558.50/821,453.45
  6. Step 6: Final answer
    x = 513,202.01

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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.