Home / 890,745.28-1,336,292.64-329,784.64

Finding the Fourth Proportional to 890,745.28, 1,336,292.64 and 329,784.64

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Solution

The fourth proportional to 890,745.28, 1,336,292.64 and 329,784.64 is: 494,741.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,745.28 : 1,336,292.64 = 329,784.64 : x
  2. Step 2: Convert to fraction form
    890,745.28/1,336,292.64 = 329,784.64/x
  3. Step 3: Cross multiply
    890,745.28x = 1,336,292.64 × 329,784.64
  4. Step 4: Simplify right side
    890,745.28x = 440,688,787,217.05
  5. Step 5: Solve for x
    x = 440,688,787,217.05/890,745.28
  6. Step 6: Final answer
    x = 494,741.65

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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.