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Finding the Fourth Proportional to 548,841.40, 821,706.90 and 492,854.20

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Solution

The fourth proportional to 548,841.40, 821,706.90 and 492,854.20 is: 737,884.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,841.40 : 821,706.90 = 492,854.20 : x
  2. Step 2: Convert to fraction form
    548,841.40/821,706.90 = 492,854.20/x
  3. Step 3: Cross multiply
    548,841.40x = 821,706.90 × 492,854.20
  4. Step 4: Simplify right side
    548,841.40x = 404,981,696,833.98
  5. Step 5: Solve for x
    x = 404,981,696,833.98/548,841.40
  6. Step 6: Final answer
    x = 737,884.75

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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.