Home / 1,590,034.89-2,195,479.78-1,221,928.96

Finding the Fourth Proportional to 1,590,034.89, 2,195,479.78 and 1,221,928.96

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Solution

The fourth proportional to 1,590,034.89, 2,195,479.78 and 1,221,928.96 is: 1,687,208.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590,034.89 : 2,195,479.78 = 1,221,928.96 : x
  2. Step 2: Convert to fraction form
    1,590,034.89/2,195,479.78 = 1,221,928.96/x
  3. Step 3: Cross multiply
    1,590,034.89x = 2,195,479.78 × 1,221,928.96
  4. Step 4: Simplify right side
    1,590,034.89x = 2,682,720,324,276.43
  5. Step 5: Solve for x
    x = 2,682,720,324,276.43/1,590,034.89
  6. Step 6: Final answer
    x = 1,687,208.46

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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.