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Finding the Fourth Proportional to 525,793.60, 789,208.80 and 259,854.40

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Solution

The fourth proportional to 525,793.60, 789,208.80 and 259,854.40 is: 390,037.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,793.60 : 789,208.80 = 259,854.40 : x
  2. Step 2: Convert to fraction form
    525,793.60/789,208.80 = 259,854.40/x
  3. Step 3: Cross multiply
    525,793.60x = 789,208.80 × 259,854.40
  4. Step 4: Simplify right side
    525,793.60x = 205,079,379,198.72
  5. Step 5: Solve for x
    x = 205,079,379,198.72/525,793.60
  6. Step 6: Final answer
    x = 390,037.80

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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.