Home / 1,328,371.80-1,993,140.90-697,137.98

Finding the Fourth Proportional to 1,328,371.80, 1,993,140.90 and 697,137.98

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Solution

The fourth proportional to 1,328,371.80, 1,993,140.90 and 697,137.98 is: 1,046,013.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,371.80 : 1,993,140.90 = 697,137.98 : x
  2. Step 2: Convert to fraction form
    1,328,371.80/1,993,140.90 = 697,137.98/x
  3. Step 3: Cross multiply
    1,328,371.80x = 1,993,140.90 × 697,137.98
  4. Step 4: Simplify right side
    1,328,371.80x = 1,389,494,220,881.38
  5. Step 5: Solve for x
    x = 1,389,494,220,881.38/1,328,371.80
  6. Step 6: Final answer
    x = 1,046,013.04

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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.