Home / 781,145.66-1,171,478.61-275,588.42

Finding the Fourth Proportional to 781,145.66, 1,171,478.61 and 275,588.42

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Solution

The fourth proportional to 781,145.66, 1,171,478.61 and 275,588.42 is: 413,297.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,145.66 : 1,171,478.61 = 275,588.42 : x
  2. Step 2: Convert to fraction form
    781,145.66/1,171,478.61 = 275,588.42/x
  3. Step 3: Cross multiply
    781,145.66x = 1,171,478.61 × 275,588.42
  4. Step 4: Simplify right side
    781,145.66x = 322,845,933,336.30
  5. Step 5: Solve for x
    x = 322,845,933,336.30/781,145.66
  6. Step 6: Final answer
    x = 413,297.99

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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.