Home / 1,278,444.24-1,915,839-938,820.96

Finding the Fourth Proportional to 1,278,444.24, 1,915,839 and 938,820.96

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Solution

The fourth proportional to 1,278,444.24, 1,915,839 and 938,820.96 is: 1,406,889.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,444.24 : 1,915,839 = 938,820.96 : x
  2. Step 2: Convert to fraction form
    1,278,444.24/1,915,839 = 938,820.96/x
  3. Step 3: Cross multiply
    1,278,444.24x = 1,915,839 × 938,820.96
  4. Step 4: Simplify right side
    1,278,444.24x = 1,798,629,809,185.44
  5. Step 5: Solve for x
    x = 1,798,629,809,185.44/1,278,444.24
  6. Step 6: Final answer
    x = 1,406,889.52

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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.