Home / 3,116,635.40-4,678,889.70-1,678,464.20

Finding the Fourth Proportional to 3,116,635.40, 4,678,889.70 and 1,678,464.20

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Solution

The fourth proportional to 3,116,635.40, 4,678,889.70 and 1,678,464.20 is: 2,519,816.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116,635.40 : 4,678,889.70 = 1,678,464.20 : x
  2. Step 2: Convert to fraction form
    3,116,635.40/4,678,889.70 = 1,678,464.20/x
  3. Step 3: Cross multiply
    3,116,635.40x = 4,678,889.70 × 1,678,464.20
  4. Step 4: Simplify right side
    3,116,635.40x = 7,853,348,857,198.74
  5. Step 5: Solve for x
    x = 7,853,348,857,198.74/3,116,635.40
  6. Step 6: Final answer
    x = 2,519,816.36

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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.