Home / 1,397,667.40-2,096,993.06-688,193.80

Finding the Fourth Proportional to 1,397,667.40, 2,096,993.06 and 688,193.80

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Solution

The fourth proportional to 1,397,667.40, 2,096,993.06 and 688,193.80 is: 1,032,532.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,667.40 : 2,096,993.06 = 688,193.80 : x
  2. Step 2: Convert to fraction form
    1,397,667.40/2,096,993.06 = 688,193.80/x
  3. Step 3: Cross multiply
    1,397,667.40x = 2,096,993.06 × 688,193.80
  4. Step 4: Simplify right side
    1,397,667.40x = 1,443,137,622,535.03
  5. Step 5: Solve for x
    x = 1,443,137,622,535.03/1,397,667.40
  6. Step 6: Final answer
    x = 1,032,532.93

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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.