Home / 1,988,760.79-2,743,317.63-1,407,329.83

Finding the Fourth Proportional to 1,988,760.79, 2,743,317.63 and 1,407,329.83

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Solution

The fourth proportional to 1,988,760.79, 2,743,317.63 and 1,407,329.83 is: 1,941,285.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,760.79 : 2,743,317.63 = 1,407,329.83 : x
  2. Step 2: Convert to fraction form
    1,988,760.79/2,743,317.63 = 1,407,329.83/x
  3. Step 3: Cross multiply
    1,988,760.79x = 2,743,317.63 × 1,407,329.83
  4. Step 4: Simplify right side
    1,988,760.79x = 3,860,752,733,863.90
  5. Step 5: Solve for x
    x = 3,860,752,733,863.90/1,988,760.79
  6. Step 6: Final answer
    x = 1,941,285.63

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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.