Home / 1,121,732.64-1,682,603.28-280,285.20

Finding the Fourth Proportional to 1,121,732.64, 1,682,603.28 and 280,285.20

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Solution

The fourth proportional to 1,121,732.64, 1,682,603.28 and 280,285.20 is: 420,428.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,732.64 : 1,682,603.28 = 280,285.20 : x
  2. Step 2: Convert to fraction form
    1,121,732.64/1,682,603.28 = 280,285.20/x
  3. Step 3: Cross multiply
    1,121,732.64x = 1,682,603.28 × 280,285.20
  4. Step 4: Simplify right side
    1,121,732.64x = 471,608,796,855.46
  5. Step 5: Solve for x
    x = 471,608,796,855.46/1,121,732.64
  6. Step 6: Final answer
    x = 420,428.88

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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.