Home / 1,275,442.62-1,913,274.09-328,805.34

Finding the Fourth Proportional to 1,275,442.62, 1,913,274.09 and 328,805.34

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Solution

The fourth proportional to 1,275,442.62, 1,913,274.09 and 328,805.34 is: 493,236.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,442.62 : 1,913,274.09 = 328,805.34 : x
  2. Step 2: Convert to fraction form
    1,275,442.62/1,913,274.09 = 328,805.34/x
  3. Step 3: Cross multiply
    1,275,442.62x = 1,913,274.09 × 328,805.34
  4. Step 4: Simplify right side
    1,275,442.62x = 629,094,737,675.64
  5. Step 5: Solve for x
    x = 629,094,737,675.64/1,275,442.62
  6. Step 6: Final answer
    x = 493,236.41

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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.