Home / 1,292,311.06-1,939,586.82-1,289,322.16

Finding the Fourth Proportional to 1,292,311.06, 1,939,586.82 and 1,289,322.16

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Solution

The fourth proportional to 1,292,311.06, 1,939,586.82 and 1,289,322.16 is: 1,935,100.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,311.06 : 1,939,586.82 = 1,289,322.16 : x
  2. Step 2: Convert to fraction form
    1,292,311.06/1,939,586.82 = 1,289,322.16/x
  3. Step 3: Cross multiply
    1,292,311.06x = 1,939,586.82 × 1,289,322.16
  4. Step 4: Simplify right side
    1,292,311.06x = 2,500,752,258,586.01
  5. Step 5: Solve for x
    x = 2,500,752,258,586.01/1,292,311.06
  6. Step 6: Final answer
    x = 1,935,100.88

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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.