Home / 1,318,046.49-1,819,290.83-766,891.89

Finding the Fourth Proportional to 1,318,046.49, 1,819,290.83 and 766,891.89

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Solution

The fourth proportional to 1,318,046.49, 1,819,290.83 and 766,891.89 is: 1,058,535.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,046.49 : 1,819,290.83 = 766,891.89 : x
  2. Step 2: Convert to fraction form
    1,318,046.49/1,819,290.83 = 766,891.89/x
  3. Step 3: Cross multiply
    1,318,046.49x = 1,819,290.83 × 766,891.89
  4. Step 4: Simplify right side
    1,318,046.49x = 1,395,199,379,243.91
  5. Step 5: Solve for x
    x = 1,395,199,379,243.91/1,318,046.49
  6. Step 6: Final answer
    x = 1,058,535.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.