Home / 1,479,431.11-2,219,168.53-414,405.85

Finding the Fourth Proportional to 1,479,431.11, 2,219,168.53 and 414,405.85

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Solution

The fourth proportional to 1,479,431.11, 2,219,168.53 and 414,405.85 is: 621,614.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479,431.11 : 2,219,168.53 = 414,405.85 : x
  2. Step 2: Convert to fraction form
    1,479,431.11/2,219,168.53 = 414,405.85/x
  3. Step 3: Cross multiply
    1,479,431.11x = 2,219,168.53 × 414,405.85
  4. Step 4: Simplify right side
    1,479,431.11x = 919,636,420,967.90
  5. Step 5: Solve for x
    x = 919,636,420,967.90/1,479,431.11
  6. Step 6: Final answer
    x = 621,614.90

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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.