Home / 1,330,579.30-1,995,431.55-489,021.70

Finding the Fourth Proportional to 1,330,579.30, 1,995,431.55 and 489,021.70

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Solution

The fourth proportional to 1,330,579.30, 1,995,431.55 and 489,021.70 is: 733,371.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,579.30 : 1,995,431.55 = 489,021.70 : x
  2. Step 2: Convert to fraction form
    1,330,579.30/1,995,431.55 = 489,021.70/x
  3. Step 3: Cross multiply
    1,330,579.30x = 1,995,431.55 × 489,021.70
  4. Step 4: Simplify right side
    1,330,579.30x = 975,809,328,814.64
  5. Step 5: Solve for x
    x = 975,809,328,814.64/1,330,579.30
  6. Step 6: Final answer
    x = 733,371.79

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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.