Home / 2,171,708.20-3,258,728.70-909,663.40

Finding the Fourth Proportional to 2,171,708.20, 3,258,728.70 and 909,663.40

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Solution

The fourth proportional to 2,171,708.20, 3,258,728.70 and 909,663.40 is: 1,364,983.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171,708.20 : 3,258,728.70 = 909,663.40 : x
  2. Step 2: Convert to fraction form
    2,171,708.20/3,258,728.70 = 909,663.40/x
  3. Step 3: Cross multiply
    2,171,708.20x = 3,258,728.70 × 909,663.40
  4. Step 4: Simplify right side
    2,171,708.20x = 2,964,346,228,919.58
  5. Step 5: Solve for x
    x = 2,964,346,228,919.58/2,171,708.20
  6. Step 6: Final answer
    x = 1,364,983.67

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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.