Home / 777,976.40-1,166,964.60-442,053.20

Finding the Fourth Proportional to 777,976.40, 1,166,964.60 and 442,053.20

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Solution

The fourth proportional to 777,976.40, 1,166,964.60 and 442,053.20 is: 663,079.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,976.40 : 1,166,964.60 = 442,053.20 : x
  2. Step 2: Convert to fraction form
    777,976.40/1,166,964.60 = 442,053.20/x
  3. Step 3: Cross multiply
    777,976.40x = 1,166,964.60 × 442,053.20
  4. Step 4: Simplify right side
    777,976.40x = 515,860,435,716.72
  5. Step 5: Solve for x
    x = 515,860,435,716.72/777,976.40
  6. Step 6: Final answer
    x = 663,079.80

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1.5x scale

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.