Home / 1,190,099.25-1,785,145.23-431,939.72

Finding the Fourth Proportional to 1,190,099.25, 1,785,145.23 and 431,939.72

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Solution

The fourth proportional to 1,190,099.25, 1,785,145.23 and 431,939.72 is: 647,908.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,099.25 : 1,785,145.23 = 431,939.72 : x
  2. Step 2: Convert to fraction form
    1,190,099.25/1,785,145.23 = 431,939.72/x
  3. Step 3: Cross multiply
    1,190,099.25x = 1,785,145.23 × 431,939.72
  4. Step 4: Simplify right side
    1,190,099.25x = 771,075,135,268.40
  5. Step 5: Solve for x
    x = 771,075,135,268.40/1,190,099.25
  6. Step 6: Final answer
    x = 647,908.26

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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.