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Finding the Fourth Proportional to 1,344,138, 1,854,910.44 and 740,538.96

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Solution

The fourth proportional to 1,344,138, 1,854,910.44 and 740,538.96 is: 1,021,943.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344,138 : 1,854,910.44 = 740,538.96 : x
  2. Step 2: Convert to fraction form
    1,344,138/1,854,910.44 = 740,538.96/x
  3. Step 3: Cross multiply
    1,344,138x = 1,854,910.44 × 740,538.96
  4. Step 4: Simplify right side
    1,344,138x = 1,373,633,448,130.74
  5. Step 5: Solve for x
    x = 1,373,633,448,130.74/1,344,138
  6. Step 6: Final answer
    x = 1,021,943.76

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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.