Home / 3,015,556.92-4,161,500.74-1,638,900.72

Finding the Fourth Proportional to 3,015,556.92, 4,161,500.74 and 1,638,900.72

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Solution

The fourth proportional to 3,015,556.92, 4,161,500.74 and 1,638,900.72 is: 2,261,700.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015,556.92 : 4,161,500.74 = 1,638,900.72 : x
  2. Step 2: Convert to fraction form
    3,015,556.92/4,161,500.74 = 1,638,900.72/x
  3. Step 3: Cross multiply
    3,015,556.92x = 4,161,500.74 × 1,638,900.72
  4. Step 4: Simplify right side
    3,015,556.92x = 6,820,286,559,066.53
  5. Step 5: Solve for x
    x = 6,820,286,559,066.53/3,015,556.92
  6. Step 6: Final answer
    x = 2,261,700.49

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1.5x scale

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.