Home / 1,397,702.62-1,928,804.22-777,504.76

Finding the Fourth Proportional to 1,397,702.62, 1,928,804.22 and 777,504.76

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Solution

The fourth proportional to 1,397,702.62, 1,928,804.22 and 777,504.76 is: 1,072,942.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,702.62 : 1,928,804.22 = 777,504.76 : x
  2. Step 2: Convert to fraction form
    1,397,702.62/1,928,804.22 = 777,504.76/x
  3. Step 3: Cross multiply
    1,397,702.62x = 1,928,804.22 × 777,504.76
  4. Step 4: Simplify right side
    1,397,702.62x = 1,499,654,462,158.09
  5. Step 5: Solve for x
    x = 1,499,654,462,158.09/1,397,702.62
  6. Step 6: Final answer
    x = 1,072,942.44

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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.