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Finding the Fourth Proportional to 783,993.60, 1,176,604.80 and 363,321.60

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Solution

The fourth proportional to 783,993.60, 1,176,604.80 and 363,321.60 is: 545,267.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,993.60 : 1,176,604.80 = 363,321.60 : x
  2. Step 2: Convert to fraction form
    783,993.60/1,176,604.80 = 363,321.60/x
  3. Step 3: Cross multiply
    783,993.60x = 1,176,604.80 × 363,321.60
  4. Step 4: Simplify right side
    783,993.60x = 427,485,938,503.68
  5. Step 5: Solve for x
    x = 427,485,938,503.68/783,993.60
  6. Step 6: Final answer
    x = 545,267.13

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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.