Home / 3,115,472.40-4,673,208.60-1,913,497.20

Finding the Fourth Proportional to 3,115,472.40, 4,673,208.60 and 1,913,497.20

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Solution

The fourth proportional to 3,115,472.40, 4,673,208.60 and 1,913,497.20 is: 2,870,245.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115,472.40 : 4,673,208.60 = 1,913,497.20 : x
  2. Step 2: Convert to fraction form
    3,115,472.40/4,673,208.60 = 1,913,497.20/x
  3. Step 3: Cross multiply
    3,115,472.40x = 4,673,208.60 × 1,913,497.20
  4. Step 4: Simplify right side
    3,115,472.40x = 8,942,171,571,115.92
  5. Step 5: Solve for x
    x = 8,942,171,571,115.92/3,115,472.40
  6. Step 6: Final answer
    x = 2,870,245.80

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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.