Home / 768,286.80-1,152,420.93-199,617.58

Finding the Fourth Proportional to 768,286.80, 1,152,420.93 and 199,617.58

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Solution

The fourth proportional to 768,286.80, 1,152,420.93 and 199,617.58 is: 299,423.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,286.80 : 1,152,420.93 = 199,617.58 : x
  2. Step 2: Convert to fraction form
    768,286.80/1,152,420.93 = 199,617.58/x
  3. Step 3: Cross multiply
    768,286.80x = 1,152,420.93 × 199,617.58
  4. Step 4: Simplify right side
    768,286.80x = 230,043,477,187.95
  5. Step 5: Solve for x
    x = 230,043,477,187.95/768,286.80
  6. Step 6: Final answer
    x = 299,423.96

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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.