Home / 1,379,571.11-1,903,794.35-767,713.40

Finding the Fourth Proportional to 1,379,571.11, 1,903,794.35 and 767,713.40

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Solution

The fourth proportional to 1,379,571.11, 1,903,794.35 and 767,713.40 is: 1,059,436.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,571.11 : 1,903,794.35 = 767,713.40 : x
  2. Step 2: Convert to fraction form
    1,379,571.11/1,903,794.35 = 767,713.40/x
  3. Step 3: Cross multiply
    1,379,571.11x = 1,903,794.35 × 767,713.40
  4. Step 4: Simplify right side
    1,379,571.11x = 1,461,568,433,339.29
  5. Step 5: Solve for x
    x = 1,461,568,433,339.29/1,379,571.11
  6. Step 6: Final answer
    x = 1,059,436.82

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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.