Home / 1,510,638.41-2,085,121.24-987,425.03

Finding the Fourth Proportional to 1,510,638.41, 2,085,121.24 and 987,425.03

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Solution

The fourth proportional to 1,510,638.41, 2,085,121.24 and 987,425.03 is: 1,362,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510,638.41 : 2,085,121.24 = 987,425.03 : x
  2. Step 2: Convert to fraction form
    1,510,638.41/2,085,121.24 = 987,425.03/x
  3. Step 3: Cross multiply
    1,510,638.41x = 2,085,121.24 × 987,425.03
  4. Step 4: Simplify right side
    1,510,638.41x = 2,058,900,905,704.88
  5. Step 5: Solve for x
    x = 2,058,900,905,704.88/1,510,638.41
  6. Step 6: Final answer
    x = 1,362,934.30

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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.