Home / 1,112,647.42-1,669,178.90-505,478.36

Finding the Fourth Proportional to 1,112,647.42, 1,669,178.90 and 505,478.36

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Solution

The fourth proportional to 1,112,647.42, 1,669,178.90 and 505,478.36 is: 758,311.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,647.42 : 1,669,178.90 = 505,478.36 : x
  2. Step 2: Convert to fraction form
    1,112,647.42/1,669,178.90 = 505,478.36/x
  3. Step 3: Cross multiply
    1,112,647.42x = 1,669,178.90 × 505,478.36
  4. Step 4: Simplify right side
    1,112,647.42x = 843,733,812,918.60
  5. Step 5: Solve for x
    x = 843,733,812,918.60/1,112,647.42
  6. Step 6: Final answer
    x = 758,311.93

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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.