Home / 743,289.60-1,025,716-421,029.44

Finding the Fourth Proportional to 743,289.60, 1,025,716 and 421,029.44

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Solution

The fourth proportional to 743,289.60, 1,025,716 and 421,029.44 is: 581,007.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,289.60 : 1,025,716 = 421,029.44 : x
  2. Step 2: Convert to fraction form
    743,289.60/1,025,716 = 421,029.44/x
  3. Step 3: Cross multiply
    743,289.60x = 1,025,716 × 421,029.44
  4. Step 4: Simplify right side
    743,289.60x = 431,856,633,079.04
  5. Step 5: Solve for x
    x = 431,856,633,079.04/743,289.60
  6. Step 6: Final answer
    x = 581,007.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.