Home / 1,405,558.14-1,939,667.49-760,978.23

Finding the Fourth Proportional to 1,405,558.14, 1,939,667.49 and 760,978.23

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Solution

The fourth proportional to 1,405,558.14, 1,939,667.49 and 760,978.23 is: 1,050,148.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,558.14 : 1,939,667.49 = 760,978.23 : x
  2. Step 2: Convert to fraction form
    1,405,558.14/1,939,667.49 = 760,978.23/x
  3. Step 3: Cross multiply
    1,405,558.14x = 1,939,667.49 × 760,978.23
  4. Step 4: Simplify right side
    1,405,558.14x = 1,476,044,733,328.74
  5. Step 5: Solve for x
    x = 1,476,044,733,328.74/1,405,558.14
  6. Step 6: Final answer
    x = 1,050,148.47

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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.