Home / 1,288,276.80-1,932,415.20-446,828.55

Finding the Fourth Proportional to 1,288,276.80, 1,932,415.20 and 446,828.55

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Solution

The fourth proportional to 1,288,276.80, 1,932,415.20 and 446,828.55 is: 670,242.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,276.80 : 1,932,415.20 = 446,828.55 : x
  2. Step 2: Convert to fraction form
    1,288,276.80/1,932,415.20 = 446,828.55/x
  3. Step 3: Cross multiply
    1,288,276.80x = 1,932,415.20 × 446,828.55
  4. Step 4: Simplify right side
    1,288,276.80x = 863,458,281,813.96
  5. Step 5: Solve for x
    x = 863,458,281,813.96/1,288,276.80
  6. Step 6: Final answer
    x = 670,242.83

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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.