Home / 2,631,628.80-3,940,444.80-1,679,846.40

Finding the Fourth Proportional to 2,631,628.80, 3,940,444.80 and 1,679,846.40

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Solution

The fourth proportional to 2,631,628.80, 3,940,444.80 and 1,679,846.40 is: 2,515,302.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631,628.80 : 3,940,444.80 = 1,679,846.40 : x
  2. Step 2: Convert to fraction form
    2,631,628.80/3,940,444.80 = 1,679,846.40/x
  3. Step 3: Cross multiply
    2,631,628.80x = 3,940,444.80 × 1,679,846.40
  4. Step 4: Simplify right side
    2,631,628.80x = 6,619,342,011,678.72
  5. Step 5: Solve for x
    x = 6,619,342,011,678.72/2,631,628.80
  6. Step 6: Final answer
    x = 2,515,302.31

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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.