Home / 1,091,420.25-1,638,247.54-901,274.77

Finding the Fourth Proportional to 1,091,420.25, 1,638,247.54 and 901,274.77

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Solution

The fourth proportional to 1,091,420.25, 1,638,247.54 and 901,274.77 is: 1,352,834.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,420.25 : 1,638,247.54 = 901,274.77 : x
  2. Step 2: Convert to fraction form
    1,091,420.25/1,638,247.54 = 901,274.77/x
  3. Step 3: Cross multiply
    1,091,420.25x = 1,638,247.54 × 901,274.77
  4. Step 4: Simplify right side
    1,091,420.25x = 1,476,511,174,816.57
  5. Step 5: Solve for x
    x = 1,476,511,174,816.57/1,091,420.25
  6. Step 6: Final answer
    x = 1,352,834.69

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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.