Home / 1,405,243.38-1,939,237.02-760,661.58

Finding the Fourth Proportional to 1,405,243.38, 1,939,237.02 and 760,661.58

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Solution

The fourth proportional to 1,405,243.38, 1,939,237.02 and 760,661.58 is: 1,049,713.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,243.38 : 1,939,237.02 = 760,661.58 : x
  2. Step 2: Convert to fraction form
    1,405,243.38/1,939,237.02 = 760,661.58/x
  3. Step 3: Cross multiply
    1,405,243.38x = 1,939,237.02 × 760,661.58
  4. Step 4: Simplify right side
    1,405,243.38x = 1,475,103,095,627.69
  5. Step 5: Solve for x
    x = 1,475,103,095,627.69/1,405,243.38
  6. Step 6: Final answer
    x = 1,049,713.61

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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.