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Finding the Fourth Proportional to 1,192,950, 1,646,271 and 656,406

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Solution

The fourth proportional to 1,192,950, 1,646,271 and 656,406 is: 905,840.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,950 : 1,646,271 = 656,406 : x
  2. Step 2: Convert to fraction form
    1,192,950/1,646,271 = 656,406/x
  3. Step 3: Cross multiply
    1,192,950x = 1,646,271 × 656,406
  4. Step 4: Simplify right side
    1,192,950x = 1,080,622,162,026
  5. Step 5: Solve for x
    x = 1,080,622,162,026/1,192,950
  6. Step 6: Final answer
    x = 905,840.28

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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.