Home / 1,287,512.44-1,775,532.90-771,183.88

Finding the Fourth Proportional to 1,287,512.44, 1,775,532.90 and 771,183.88

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Solution

The fourth proportional to 1,287,512.44, 1,775,532.90 and 771,183.88 is: 1,063,494.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,512.44 : 1,775,532.90 = 771,183.88 : x
  2. Step 2: Convert to fraction form
    1,287,512.44/1,775,532.90 = 771,183.88/x
  3. Step 3: Cross multiply
    1,287,512.44x = 1,775,532.90 × 771,183.88
  4. Step 4: Simplify right side
    1,287,512.44x = 1,369,262,350,889.65
  5. Step 5: Solve for x
    x = 1,369,262,350,889.65/1,287,512.44
  6. Step 6: Final answer
    x = 1,063,494.46

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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.