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Finding the Fourth Proportional to 865,103.60, 1,297,266.60 and 332,447.60

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Solution

The fourth proportional to 865,103.60, 1,297,266.60 and 332,447.60 is: 498,521.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,103.60 : 1,297,266.60 = 332,447.60 : x
  2. Step 2: Convert to fraction form
    865,103.60/1,297,266.60 = 332,447.60/x
  3. Step 3: Cross multiply
    865,103.60x = 1,297,266.60 × 332,447.60
  4. Step 4: Simplify right side
    865,103.60x = 431,273,167,730.16
  5. Step 5: Solve for x
    x = 431,273,167,730.16/865,103.60
  6. Step 6: Final answer
    x = 498,521.99

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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.