Home / 1,192,128.88-1,645,371.48-683,172.40

Finding the Fourth Proportional to 1,192,128.88, 1,645,371.48 and 683,172.40

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Solution

The fourth proportional to 1,192,128.88, 1,645,371.48 and 683,172.40 is: 942,911.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,128.88 : 1,645,371.48 = 683,172.40 : x
  2. Step 2: Convert to fraction form
    1,192,128.88/1,645,371.48 = 683,172.40/x
  3. Step 3: Cross multiply
    1,192,128.88x = 1,645,371.48 × 683,172.40
  4. Step 4: Simplify right side
    1,192,128.88x = 1,124,072,382,883.15
  5. Step 5: Solve for x
    x = 1,124,072,382,883.15/1,192,128.88
  6. Step 6: Final answer
    x = 942,911.80

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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.