Home / 970,820.70-1,339,738.80-541,128.09

Finding the Fourth Proportional to 970,820.70, 1,339,738.80 and 541,128.09

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Solution

The fourth proportional to 970,820.70, 1,339,738.80 and 541,128.09 is: 746,760.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,820.70 : 1,339,738.80 = 541,128.09 : x
  2. Step 2: Convert to fraction form
    970,820.70/1,339,738.80 = 541,128.09/x
  3. Step 3: Cross multiply
    970,820.70x = 1,339,738.80 × 541,128.09
  4. Step 4: Simplify right side
    970,820.70x = 724,970,297,942.89
  5. Step 5: Solve for x
    x = 724,970,297,942.89/970,820.70
  6. Step 6: Final answer
    x = 746,760.24

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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.