Home / 1,261,310.45-1,890,840.38-462,405.42

Finding the Fourth Proportional to 1,261,310.45, 1,890,840.38 and 462,405.42

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Solution

The fourth proportional to 1,261,310.45, 1,890,840.38 and 462,405.42 is: 693,195.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,310.45 : 1,890,840.38 = 462,405.42 : x
  2. Step 2: Convert to fraction form
    1,261,310.45/1,890,840.38 = 462,405.42/x
  3. Step 3: Cross multiply
    1,261,310.45x = 1,890,840.38 × 462,405.42
  4. Step 4: Simplify right side
    1,261,310.45x = 874,334,840,066.86
  5. Step 5: Solve for x
    x = 874,334,840,066.86/1,261,310.45
  6. Step 6: Final answer
    x = 693,195.59

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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.