Home / 1,056.57-1,584.44-439.86

Finding the Fourth Proportional to 1,056.57, 1,584.44 and 439.86

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Solution

The fourth proportional to 1,056.57, 1,584.44 and 439.86 is: 659.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056.57 : 1,584.44 = 439.86 : x
  2. Step 2: Convert to fraction form
    1,056.57/1,584.44 = 439.86/x
  3. Step 3: Cross multiply
    1,056.57x = 1,584.44 × 439.86
  4. Step 4: Simplify right side
    1,056.57x = 696,931.78
  5. Step 5: Solve for x
    x = 696,931.78/1,056.57
  6. Step 6: Final answer
    x = 659.62

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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.