Home / 1,351,211.23-1,864,713.33-739,389.78

Finding the Fourth Proportional to 1,351,211.23, 1,864,713.33 and 739,389.78

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Solution

The fourth proportional to 1,351,211.23, 1,864,713.33 and 739,389.78 is: 1,020,380.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,211.23 : 1,864,713.33 = 739,389.78 : x
  2. Step 2: Convert to fraction form
    1,351,211.23/1,864,713.33 = 739,389.78/x
  3. Step 3: Cross multiply
    1,351,211.23x = 1,864,713.33 × 739,389.78
  4. Step 4: Simplify right side
    1,351,211.23x = 1,378,749,978,831.77
  5. Step 5: Solve for x
    x = 1,378,749,978,831.77/1,351,211.23
  6. Step 6: Final answer
    x = 1,020,380.79

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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.