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Finding the Fourth Proportional to 540,790.81, 746,286.96 and 299,083.57

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Solution

The fourth proportional to 540,790.81, 746,286.96 and 299,083.57 is: 412,732.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,790.81 : 746,286.96 = 299,083.57 : x
  2. Step 2: Convert to fraction form
    540,790.81/746,286.96 = 299,083.57/x
  3. Step 3: Cross multiply
    540,790.81x = 746,286.96 × 299,083.57
  4. Step 4: Simplify right side
    540,790.81x = 223,202,168,241.25
  5. Step 5: Solve for x
    x = 223,202,168,241.25/540,790.81
  6. Step 6: Final answer
    x = 412,732.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.