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Finding the Fourth Proportional to 1,382,922, 1,908,432.36 and 747,018

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Solution

The fourth proportional to 1,382,922, 1,908,432.36 and 747,018 is: 1,030,884.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,922 : 1,908,432.36 = 747,018 : x
  2. Step 2: Convert to fraction form
    1,382,922/1,908,432.36 = 747,018/x
  3. Step 3: Cross multiply
    1,382,922x = 1,908,432.36 × 747,018
  4. Step 4: Simplify right side
    1,382,922x = 1,425,633,324,702.48
  5. Step 5: Solve for x
    x = 1,425,633,324,702.48/1,382,922
  6. Step 6: Final answer
    x = 1,030,884.84

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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.