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Finding the Fourth Proportional to 1,395,019.62, 1,925,712.09 and 942,922.98

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Solution

The fourth proportional to 1,395,019.62, 1,925,712.09 and 942,922.98 is: 1,301,629.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,019.62 : 1,925,712.09 = 942,922.98 : x
  2. Step 2: Convert to fraction form
    1,395,019.62/1,925,712.09 = 942,922.98/x
  3. Step 3: Cross multiply
    1,395,019.62x = 1,925,712.09 × 942,922.98
  4. Step 4: Simplify right side
    1,395,019.62x = 1,815,798,182,524.83
  5. Step 5: Solve for x
    x = 1,815,798,182,524.83/1,395,019.62
  6. Step 6: Final answer
    x = 1,301,629.14

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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.