Home / 2,011,512.80-3,020,768.40-1,066,728.80

Finding the Fourth Proportional to 2,011,512.80, 3,020,768.40 and 1,066,728.80

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Solution

The fourth proportional to 2,011,512.80, 3,020,768.40 and 1,066,728.80 is: 1,601,948.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011,512.80 : 3,020,768.40 = 1,066,728.80 : x
  2. Step 2: Convert to fraction form
    2,011,512.80/3,020,768.40 = 1,066,728.80/x
  3. Step 3: Cross multiply
    2,011,512.80x = 3,020,768.40 × 1,066,728.80
  4. Step 4: Simplify right side
    2,011,512.80x = 3,222,340,650,409.92
  5. Step 5: Solve for x
    x = 3,222,340,650,409.92/2,011,512.80
  6. Step 6: Final answer
    x = 1,601,948.87

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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.