Home / 1,290,369.53-1,780,198.48-746,404.31

Finding the Fourth Proportional to 1,290,369.53, 1,780,198.48 and 746,404.31

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Solution

The fourth proportional to 1,290,369.53, 1,780,198.48 and 746,404.31 is: 1,029,742.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,369.53 : 1,780,198.48 = 746,404.31 : x
  2. Step 2: Convert to fraction form
    1,290,369.53/1,780,198.48 = 746,404.31/x
  3. Step 3: Cross multiply
    1,290,369.53x = 1,780,198.48 × 746,404.31
  4. Step 4: Simplify right side
    1,290,369.53x = 1,328,747,818,127.45
  5. Step 5: Solve for x
    x = 1,328,747,818,127.45/1,290,369.53
  6. Step 6: Final answer
    x = 1,029,742.09

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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.