Home / 1,256,012.80-1,884,313.20-414,563.72

Finding the Fourth Proportional to 1,256,012.80, 1,884,313.20 and 414,563.72

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Solution

The fourth proportional to 1,256,012.80, 1,884,313.20 and 414,563.72 is: 621,942.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,012.80 : 1,884,313.20 = 414,563.72 : x
  2. Step 2: Convert to fraction form
    1,256,012.80/1,884,313.20 = 414,563.72/x
  3. Step 3: Cross multiply
    1,256,012.80x = 1,884,313.20 × 414,563.72
  4. Step 4: Simplify right side
    1,256,012.80x = 781,167,889,837.10
  5. Step 5: Solve for x
    x = 781,167,889,837.10/1,256,012.80
  6. Step 6: Final answer
    x = 621,942.62

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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.