Home / 1,400,644.20-2,101,622.37-690,284.73

Finding the Fourth Proportional to 1,400,644.20, 2,101,622.37 and 690,284.73

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Solution

The fourth proportional to 1,400,644.20, 2,101,622.37 and 690,284.73 is: 1,035,750.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,644.20 : 2,101,622.37 = 690,284.73 : x
  2. Step 2: Convert to fraction form
    1,400,644.20/2,101,622.37 = 690,284.73/x
  3. Step 3: Cross multiply
    1,400,644.20x = 2,101,622.37 × 690,284.73
  4. Step 4: Simplify right side
    1,400,644.20x = 1,450,717,830,237.41
  5. Step 5: Solve for x
    x = 1,450,717,830,237.41/1,400,644.20
  6. Step 6: Final answer
    x = 1,035,750.43

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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.