Home / 1,905,402.88-2,629,387.94-1,078,458.69

Finding the Fourth Proportional to 1,905,402.88, 2,629,387.94 and 1,078,458.69

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Solution

The fourth proportional to 1,905,402.88, 2,629,387.94 and 1,078,458.69 is: 1,488,234.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905,402.88 : 2,629,387.94 = 1,078,458.69 : x
  2. Step 2: Convert to fraction form
    1,905,402.88/2,629,387.94 = 1,078,458.69/x
  3. Step 3: Cross multiply
    1,905,402.88x = 2,629,387.94 × 1,078,458.69
  4. Step 4: Simplify right side
    1,905,402.88x = 2,835,686,273,274.20
  5. Step 5: Solve for x
    x = 2,835,686,273,274.20/1,905,402.88
  6. Step 6: Final answer
    x = 1,488,234.48

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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.