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Finding the Fourth Proportional to 662,386.60, 993,093.90 and 262,829.80

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Solution

The fourth proportional to 662,386.60, 993,093.90 and 262,829.80 is: 394,051.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,386.60 : 993,093.90 = 262,829.80 : x
  2. Step 2: Convert to fraction form
    662,386.60/993,093.90 = 262,829.80/x
  3. Step 3: Cross multiply
    662,386.60x = 993,093.90 × 262,829.80
  4. Step 4: Simplify right side
    662,386.60x = 261,014,671,118.22
  5. Step 5: Solve for x
    x = 261,014,671,118.22/662,386.60
  6. Step 6: Final answer
    x = 394,051.86

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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.