Home / 1,678,020.60-2,315,656.56-914,074.20

Finding the Fourth Proportional to 1,678,020.60, 2,315,656.56 and 914,074.20

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Solution

The fourth proportional to 1,678,020.60, 2,315,656.56 and 914,074.20 is: 1,261,415.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,020.60 : 2,315,656.56 = 914,074.20 : x
  2. Step 2: Convert to fraction form
    1,678,020.60/2,315,656.56 = 914,074.20/x
  3. Step 3: Cross multiply
    1,678,020.60x = 2,315,656.56 × 914,074.20
  4. Step 4: Simplify right side
    1,678,020.60x = 2,116,681,917,556.75
  5. Step 5: Solve for x
    x = 2,116,681,917,556.75/1,678,020.60
  6. Step 6: Final answer
    x = 1,261,415.93

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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.