Home / 1,848,979.20-2,772,086.40-783,148.80

Finding the Fourth Proportional to 1,848,979.20, 2,772,086.40 and 783,148.80

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Solution

The fourth proportional to 1,848,979.20, 2,772,086.40 and 783,148.80 is: 1,174,137.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,848,979.20 : 2,772,086.40 = 783,148.80 : x
  2. Step 2: Convert to fraction form
    1,848,979.20/2,772,086.40 = 783,148.80/x
  3. Step 3: Cross multiply
    1,848,979.20x = 2,772,086.40 × 783,148.80
  4. Step 4: Simplify right side
    1,848,979.20x = 2,170,956,137,656.32
  5. Step 5: Solve for x
    x = 2,170,956,137,656.32/1,848,979.20
  6. Step 6: Final answer
    x = 1,174,137.67

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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.