Home / 1,615,278.40-2,229,087.36-970,708.48

Finding the Fourth Proportional to 1,615,278.40, 2,229,087.36 and 970,708.48

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Solution

The fourth proportional to 1,615,278.40, 2,229,087.36 and 970,708.48 is: 1,339,579.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,278.40 : 2,229,087.36 = 970,708.48 : x
  2. Step 2: Convert to fraction form
    1,615,278.40/2,229,087.36 = 970,708.48/x
  3. Step 3: Cross multiply
    1,615,278.40x = 2,229,087.36 × 970,708.48
  4. Step 4: Simplify right side
    1,615,278.40x = 2,163,794,003,012.81
  5. Step 5: Solve for x
    x = 2,163,794,003,012.81/1,615,278.40
  6. Step 6: Final answer
    x = 1,339,579.61

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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.