Home / 1,221,369.26-1,685,516.64-677,487.38

Finding the Fourth Proportional to 1,221,369.26, 1,685,516.64 and 677,487.38

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Solution

The fourth proportional to 1,221,369.26, 1,685,516.64 and 677,487.38 is: 934,947.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,369.26 : 1,685,516.64 = 677,487.38 : x
  2. Step 2: Convert to fraction form
    1,221,369.26/1,685,516.64 = 677,487.38/x
  3. Step 3: Cross multiply
    1,221,369.26x = 1,685,516.64 × 677,487.38
  4. Step 4: Simplify right side
    1,221,369.26x = 1,141,916,252,380.00
  5. Step 5: Solve for x
    x = 1,141,916,252,380.00/1,221,369.26
  6. Step 6: Final answer
    x = 934,947.60

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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.