Home / 821,986.80-1,232,962.92-378,754.80

Finding the Fourth Proportional to 821,986.80, 1,232,962.92 and 378,754.80

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Solution

The fourth proportional to 821,986.80, 1,232,962.92 and 378,754.80 is: 568,124.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,986.80 : 1,232,962.92 = 378,754.80 : x
  2. Step 2: Convert to fraction form
    821,986.80/1,232,962.92 = 378,754.80/x
  3. Step 3: Cross multiply
    821,986.80x = 1,232,962.92 × 378,754.80
  4. Step 4: Simplify right side
    821,986.80x = 466,990,624,172.02
  5. Step 5: Solve for x
    x = 466,990,624,172.02/821,986.80
  6. Step 6: Final answer
    x = 568,124.24

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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.