Home / 2,171,710.20-3,258,731.70-909,665.40

Finding the Fourth Proportional to 2,171,710.20, 3,258,731.70 and 909,665.40

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Solution

The fourth proportional to 2,171,710.20, 3,258,731.70 and 909,665.40 is: 1,364,986.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171,710.20 : 3,258,731.70 = 909,665.40 : x
  2. Step 2: Convert to fraction form
    2,171,710.20/3,258,731.70 = 909,665.40/x
  3. Step 3: Cross multiply
    2,171,710.20x = 3,258,731.70 × 909,665.40
  4. Step 4: Simplify right side
    2,171,710.20x = 2,964,355,475,373.18
  5. Step 5: Solve for x
    x = 2,964,355,475,373.18/2,171,710.20
  6. Step 6: Final answer
    x = 1,364,986.67

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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.