Home / 1,282,531.90-1,769,738.42-738,843.70

Finding the Fourth Proportional to 1,282,531.90, 1,769,738.42 and 738,843.70

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Solution

The fourth proportional to 1,282,531.90, 1,769,738.42 and 738,843.70 is: 1,019,514.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,531.90 : 1,769,738.42 = 738,843.70 : x
  2. Step 2: Convert to fraction form
    1,282,531.90/1,769,738.42 = 738,843.70/x
  3. Step 3: Cross multiply
    1,282,531.90x = 1,769,738.42 × 738,843.70
  4. Step 4: Simplify right side
    1,282,531.90x = 1,307,560,082,264.95
  5. Step 5: Solve for x
    x = 1,307,560,082,264.95/1,282,531.90
  6. Step 6: Final answer
    x = 1,019,514.67

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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.