Home / 727,318.60-1,090,200.30-327,891.40

Finding the Fourth Proportional to 727,318.60, 1,090,200.30 and 327,891.40

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Solution

The fourth proportional to 727,318.60, 1,090,200.30 and 327,891.40 is: 491,486.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,318.60 : 1,090,200.30 = 327,891.40 : x
  2. Step 2: Convert to fraction form
    727,318.60/1,090,200.30 = 327,891.40/x
  3. Step 3: Cross multiply
    727,318.60x = 1,090,200.30 × 327,891.40
  4. Step 4: Simplify right side
    727,318.60x = 357,467,302,647.42
  5. Step 5: Solve for x
    x = 357,467,302,647.42/727,318.60
  6. Step 6: Final answer
    x = 491,486.54

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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.