Home / 1,028,276.87-1,542,398.78-280,322.87

Finding the Fourth Proportional to 1,028,276.87, 1,542,398.78 and 280,322.87

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Solution

The fourth proportional to 1,028,276.87, 1,542,398.78 and 280,322.87 is: 420,479.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,276.87 : 1,542,398.78 = 280,322.87 : x
  2. Step 2: Convert to fraction form
    1,028,276.87/1,542,398.78 = 280,322.87/x
  3. Step 3: Cross multiply
    1,028,276.87x = 1,542,398.78 × 280,322.87
  4. Step 4: Simplify right side
    1,028,276.87x = 432,369,643,580.49
  5. Step 5: Solve for x
    x = 432,369,643,580.49/1,028,276.87
  6. Step 6: Final answer
    x = 420,479.79

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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.