Home / 1,284,321.10-1,926,571.40-515,818.86

Finding the Fourth Proportional to 1,284,321.10, 1,926,571.40 and 515,818.86

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Solution

The fourth proportional to 1,284,321.10, 1,926,571.40 and 515,818.86 is: 773,764.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,321.10 : 1,926,571.40 = 515,818.86 : x
  2. Step 2: Convert to fraction form
    1,284,321.10/1,926,571.40 = 515,818.86/x
  3. Step 3: Cross multiply
    1,284,321.10x = 1,926,571.40 × 515,818.86
  4. Step 4: Simplify right side
    1,284,321.10x = 993,761,863,256.60
  5. Step 5: Solve for x
    x = 993,761,863,256.60/1,284,321.10
  6. Step 6: Final answer
    x = 773,764.34

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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.