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Finding the Fourth Proportional to 462,085.60, 693,128.40 and 394,434.40

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Solution

The fourth proportional to 462,085.60, 693,128.40 and 394,434.40 is: 591,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,085.60 : 693,128.40 = 394,434.40 : x
  2. Step 2: Convert to fraction form
    462,085.60/693,128.40 = 394,434.40/x
  3. Step 3: Cross multiply
    462,085.60x = 693,128.40 × 394,434.40
  4. Step 4: Simplify right side
    462,085.60x = 273,393,684,576.96
  5. Step 5: Solve for x
    x = 273,393,684,576.96/462,085.60
  6. Step 6: Final answer
    x = 591,651.60

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Similar ratio
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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.