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Finding the Fourth Proportional to 1,042,872, 1,439,163.36 and 565,944

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Solution

The fourth proportional to 1,042,872, 1,439,163.36 and 565,944 is: 781,002.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,872 : 1,439,163.36 = 565,944 : x
  2. Step 2: Convert to fraction form
    1,042,872/1,439,163.36 = 565,944/x
  3. Step 3: Cross multiply
    1,042,872x = 1,439,163.36 × 565,944
  4. Step 4: Simplify right side
    1,042,872x = 814,485,868,611.84
  5. Step 5: Solve for x
    x = 814,485,868,611.84/1,042,872
  6. Step 6: Final answer
    x = 781,002.72

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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.