Home / 1,330,178.64-1,995,467.21-431,321.64

Finding the Fourth Proportional to 1,330,178.64, 1,995,467.21 and 431,321.64

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Solution

The fourth proportional to 1,330,178.64, 1,995,467.21 and 431,321.64 is: 647,047.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,178.64 : 1,995,467.21 = 431,321.64 : x
  2. Step 2: Convert to fraction form
    1,330,178.64/1,995,467.21 = 431,321.64/x
  3. Step 3: Cross multiply
    1,330,178.64x = 1,995,467.21 × 431,321.64
  4. Step 4: Simplify right side
    1,330,178.64x = 860,688,189,583.43
  5. Step 5: Solve for x
    x = 860,688,189,583.43/1,330,178.64
  6. Step 6: Final answer
    x = 647,047.07

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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.