Home / 814,133.09-1,219,658.24-543,445.03

Finding the Fourth Proportional to 814,133.09, 1,219,658.24 and 543,445.03

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Solution

The fourth proportional to 814,133.09, 1,219,658.24 and 543,445.03 is: 814,138.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,133.09 : 1,219,658.24 = 543,445.03 : x
  2. Step 2: Convert to fraction form
    814,133.09/1,219,658.24 = 543,445.03/x
  3. Step 3: Cross multiply
    814,133.09x = 1,219,658.24 × 543,445.03
  4. Step 4: Simplify right side
    814,133.09x = 662,817,206,109.32
  5. Step 5: Solve for x
    x = 662,817,206,109.32/814,133.09
  6. Step 6: Final answer
    x = 814,138.64

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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.