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Finding the Fourth Proportional to 662,286.60, 992,409.30 and 493,012.80

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Solution

The fourth proportional to 662,286.60, 992,409.30 and 493,012.80 is: 738,759.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,286.60 : 992,409.30 = 493,012.80 : x
  2. Step 2: Convert to fraction form
    662,286.60/992,409.30 = 493,012.80/x
  3. Step 3: Cross multiply
    662,286.60x = 992,409.30 × 493,012.80
  4. Step 4: Simplify right side
    662,286.60x = 489,270,487,739.04
  5. Step 5: Solve for x
    x = 489,270,487,739.04/662,286.60
  6. Step 6: Final answer
    x = 738,759.46

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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.