Home / 821,145.06-1,231,583.40-288,541.44

Finding the Fourth Proportional to 821,145.06, 1,231,583.40 and 288,541.44

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Solution

The fourth proportional to 821,145.06, 1,231,583.40 and 288,541.44 is: 432,765.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,145.06 : 1,231,583.40 = 288,541.44 : x
  2. Step 2: Convert to fraction form
    821,145.06/1,231,583.40 = 288,541.44/x
  3. Step 3: Cross multiply
    821,145.06x = 1,231,583.40 × 288,541.44
  4. Step 4: Simplify right side
    821,145.06x = 355,362,847,716.10
  5. Step 5: Solve for x
    x = 355,362,847,716.10/821,145.06
  6. Step 6: Final answer
    x = 432,765.01

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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.