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Finding the Fourth Proportional to 1,251,315, 1,726,804.44 and 678,340.44

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Solution

The fourth proportional to 1,251,315, 1,726,804.44 and 678,340.44 is: 936,104.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,315 : 1,726,804.44 = 678,340.44 : x
  2. Step 2: Convert to fraction form
    1,251,315/1,726,804.44 = 678,340.44/x
  3. Step 3: Cross multiply
    1,251,315x = 1,726,804.44 × 678,340.44
  4. Step 4: Simplify right side
    1,251,315x = 1,171,361,283,623.55
  5. Step 5: Solve for x
    x = 1,171,361,283,623.55/1,251,315
  6. Step 6: Final answer
    x = 936,104.25

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1.5x scale

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.