Home / 5,315,065.60-7,972,625.76-1,325,977.60

Finding the Fourth Proportional to 5,315,065.60, 7,972,625.76 and 1,325,977.60

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Solution

The fourth proportional to 5,315,065.60, 7,972,625.76 and 1,325,977.60 is: 1,988,973.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315,065.60 : 7,972,625.76 = 1,325,977.60 : x
  2. Step 2: Convert to fraction form
    5,315,065.60/7,972,625.76 = 1,325,977.60/x
  3. Step 3: Cross multiply
    5,315,065.60x = 7,972,625.76 × 1,325,977.60
  4. Step 4: Simplify right side
    5,315,065.60x = 10,571,523,170,942.98
  5. Step 5: Solve for x
    x = 10,571,523,170,942.98/5,315,065.60
  6. Step 6: Final answer
    x = 1,988,973.23

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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.