Home / 1,261,286.40-1,890,804.60-462,381.42

Finding the Fourth Proportional to 1,261,286.40, 1,890,804.60 and 462,381.42

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Solution

The fourth proportional to 1,261,286.40, 1,890,804.60 and 462,381.42 is: 693,159.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,286.40 : 1,890,804.60 = 462,381.42 : x
  2. Step 2: Convert to fraction form
    1,261,286.40/1,890,804.60 = 462,381.42/x
  3. Step 3: Cross multiply
    1,261,286.40x = 1,890,804.60 × 462,381.42
  4. Step 4: Simplify right side
    1,261,286.40x = 874,272,915,890.53
  5. Step 5: Solve for x
    x = 874,272,915,890.53/1,261,286.40
  6. Step 6: Final answer
    x = 693,159.71

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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.