Home / 1,018,725.30-1,405,849.24-636,973.38

Finding the Fourth Proportional to 1,018,725.30, 1,405,849.24 and 636,973.38

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Solution

The fourth proportional to 1,018,725.30, 1,405,849.24 and 636,973.38 is: 879,028.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,725.30 : 1,405,849.24 = 636,973.38 : x
  2. Step 2: Convert to fraction form
    1,018,725.30/1,405,849.24 = 636,973.38/x
  3. Step 3: Cross multiply
    1,018,725.30x = 1,405,849.24 × 636,973.38
  4. Step 4: Simplify right side
    1,018,725.30x = 895,488,542,173.23
  5. Step 5: Solve for x
    x = 895,488,542,173.23/1,018,725.30
  6. Step 6: Final answer
    x = 879,028.47

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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.