Home / 1,381,570.37-1,905,273.95-1,091,874.03

Finding the Fourth Proportional to 1,381,570.37, 1,905,273.95 and 1,091,874.03

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Solution

The fourth proportional to 1,381,570.37, 1,905,273.95 and 1,091,874.03 is: 1,505,764.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,570.37 : 1,905,273.95 = 1,091,874.03 : x
  2. Step 2: Convert to fraction form
    1,381,570.37/1,905,273.95 = 1,091,874.03/x
  3. Step 3: Cross multiply
    1,381,570.37x = 1,905,273.95 × 1,091,874.03
  4. Step 4: Simplify right side
    1,381,570.37x = 2,080,319,139,578.16
  5. Step 5: Solve for x
    x = 2,080,319,139,578.16/1,381,570.37
  6. Step 6: Final answer
    x = 1,505,764.15

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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.