Home / 1,426,243.96-1,968,232.08-781,650.28

Finding the Fourth Proportional to 1,426,243.96, 1,968,232.08 and 781,650.28

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Solution

The fourth proportional to 1,426,243.96, 1,968,232.08 and 781,650.28 is: 1,078,685.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,243.96 : 1,968,232.08 = 781,650.28 : x
  2. Step 2: Convert to fraction form
    1,426,243.96/1,968,232.08 = 781,650.28/x
  3. Step 3: Cross multiply
    1,426,243.96x = 1,968,232.08 × 781,650.28
  4. Step 4: Simplify right side
    1,426,243.96x = 1,538,469,156,436.98
  5. Step 5: Solve for x
    x = 1,538,469,156,436.98/1,426,243.96
  6. Step 6: Final answer
    x = 1,078,685.83

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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.