Home / 1,528,013.37-2,108,198.61-915,942.80

Finding the Fourth Proportional to 1,528,013.37, 2,108,198.61 and 915,942.80

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Solution

The fourth proportional to 1,528,013.37, 2,108,198.61 and 915,942.80 is: 1,263,725.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,013.37 : 2,108,198.61 = 915,942.80 : x
  2. Step 2: Convert to fraction form
    1,528,013.37/2,108,198.61 = 915,942.80/x
  3. Step 3: Cross multiply
    1,528,013.37x = 2,108,198.61 × 915,942.80
  4. Step 4: Simplify right side
    1,528,013.37x = 1,930,989,337,799.51
  5. Step 5: Solve for x
    x = 1,930,989,337,799.51/1,528,013.37
  6. Step 6: Final answer
    x = 1,263,725.42

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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.