Home / 1,261,343.28-1,890,890.02-462,438.66

Finding the Fourth Proportional to 1,261,343.28, 1,890,890.02 and 462,438.66

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Solution

The fourth proportional to 1,261,343.28, 1,890,890.02 and 462,438.66 is: 693,245.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,343.28 : 1,890,890.02 = 462,438.66 : x
  2. Step 2: Convert to fraction form
    1,261,343.28/1,890,890.02 = 462,438.66/x
  3. Step 3: Cross multiply
    1,261,343.28x = 1,890,890.02 × 462,438.66
  4. Step 4: Simplify right side
    1,261,343.28x = 874,420,647,056.17
  5. Step 5: Solve for x
    x = 874,420,647,056.17/1,261,343.28
  6. Step 6: Final answer
    x = 693,245.57

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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.