Home / 1,116,216.40-1,673,311.96-405,742.64

Finding the Fourth Proportional to 1,116,216.40, 1,673,311.96 and 405,742.64

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Solution

The fourth proportional to 1,116,216.40, 1,673,311.96 and 405,742.64 is: 608,245.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,216.40 : 1,673,311.96 = 405,742.64 : x
  2. Step 2: Convert to fraction form
    1,116,216.40/1,673,311.96 = 405,742.64/x
  3. Step 3: Cross multiply
    1,116,216.40x = 1,673,311.96 × 405,742.64
  4. Step 4: Simplify right side
    1,116,216.40x = 678,934,012,193.97
  5. Step 5: Solve for x
    x = 678,934,012,193.97/1,116,216.40
  6. Step 6: Final answer
    x = 608,245.87

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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.