Home / 1,018,719.67-1,405,841.48-636,967.75

Finding the Fourth Proportional to 1,018,719.67, 1,405,841.48 and 636,967.75

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Solution

The fourth proportional to 1,018,719.67, 1,405,841.48 and 636,967.75 is: 879,020.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,719.67 : 1,405,841.48 = 636,967.75 : x
  2. Step 2: Convert to fraction form
    1,018,719.67/1,405,841.48 = 636,967.75/x
  3. Step 3: Cross multiply
    1,018,719.67x = 1,405,841.48 × 636,967.75
  4. Step 4: Simplify right side
    1,018,719.67x = 895,475,682,450.09
  5. Step 5: Solve for x
    x = 895,475,682,450.09/1,018,719.67
  6. Step 6: Final answer
    x = 879,020.71

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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.