Home / 5,258,678.40-7,889,199.39-1,664,660.88

Finding the Fourth Proportional to 5,258,678.40, 7,889,199.39 and 1,664,660.88

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Solution

The fourth proportional to 5,258,678.40, 7,889,199.39 and 1,664,660.88 is: 2,497,365.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,258,678.40 : 7,889,199.39 = 1,664,660.88 : x
  2. Step 2: Convert to fraction form
    5,258,678.40/7,889,199.39 = 1,664,660.88/x
  3. Step 3: Cross multiply
    5,258,678.40x = 7,889,199.39 × 1,664,660.88
  4. Step 4: Simplify right side
    5,258,678.40x = 13,132,841,599,052.86
  5. Step 5: Solve for x
    x = 13,132,841,599,052.86/5,258,678.40
  6. Step 6: Final answer
    x = 2,497,365.42

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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.