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Finding the Fourth Proportional to 662,409.60, 993,128.40 and 262,852.80

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Solution

The fourth proportional to 662,409.60, 993,128.40 and 262,852.80 is: 394,086.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,409.60 : 993,128.40 = 262,852.80 : x
  2. Step 2: Convert to fraction form
    662,409.60/993,128.40 = 262,852.80/x
  3. Step 3: Cross multiply
    662,409.60x = 993,128.40 × 262,852.80
  4. Step 4: Simplify right side
    662,409.60x = 261,046,580,699.52
  5. Step 5: Solve for x
    x = 261,046,580,699.52/662,409.60
  6. Step 6: Final answer
    x = 394,086.35

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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.