Home / 1,056.45-1,584.70-326.03

Finding the Fourth Proportional to 1,056.45, 1,584.70 and 326.03

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Solution

The fourth proportional to 1,056.45, 1,584.70 and 326.03 is: 489.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056.45 : 1,584.70 = 326.03 : x
  2. Step 2: Convert to fraction form
    1,056.45/1,584.70 = 326.03/x
  3. Step 3: Cross multiply
    1,056.45x = 1,584.70 × 326.03
  4. Step 4: Simplify right side
    1,056.45x = 516,650.19
  5. Step 5: Solve for x
    x = 516,650.19/1,056.45
  6. Step 6: Final answer
    x = 489.04

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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.