Home / 1,270,722.56-1,905,660.97-512,368.16

Finding the Fourth Proportional to 1,270,722.56, 1,905,660.97 and 512,368.16

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Solution

The fourth proportional to 1,270,722.56, 1,905,660.97 and 512,368.16 is: 768,381.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,722.56 : 1,905,660.97 = 512,368.16 : x
  2. Step 2: Convert to fraction form
    1,270,722.56/1,905,660.97 = 512,368.16/x
  3. Step 3: Cross multiply
    1,270,722.56x = 1,905,660.97 × 512,368.16
  4. Step 4: Simplify right side
    1,270,722.56x = 976,400,004,782.72
  5. Step 5: Solve for x
    x = 976,400,004,782.72/1,270,722.56
  6. Step 6: Final answer
    x = 768,381.73

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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.