Home / 777,798.20-1,166,697.30-663,636.80

Finding the Fourth Proportional to 777,798.20, 1,166,697.30 and 663,636.80

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Solution

The fourth proportional to 777,798.20, 1,166,697.30 and 663,636.80 is: 995,455.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,798.20 : 1,166,697.30 = 663,636.80 : x
  2. Step 2: Convert to fraction form
    777,798.20/1,166,697.30 = 663,636.80/x
  3. Step 3: Cross multiply
    777,798.20x = 1,166,697.30 × 663,636.80
  4. Step 4: Simplify right side
    777,798.20x = 774,263,262,740.64
  5. Step 5: Solve for x
    x = 774,263,262,740.64/777,798.20
  6. Step 6: Final answer
    x = 995,455.20

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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.