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Finding the Fourth Proportional to 1,339,569.71, 1,848,607.82 and 727,722.88

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Solution

The fourth proportional to 1,339,569.71, 1,848,607.82 and 727,722.88 is: 1,004,258.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,569.71 : 1,848,607.82 = 727,722.88 : x
  2. Step 2: Convert to fraction form
    1,339,569.71/1,848,607.82 = 727,722.88/x
  3. Step 3: Cross multiply
    1,339,569.71x = 1,848,607.82 × 727,722.88
  4. Step 4: Simplify right side
    1,339,569.71x = 1,345,274,211,628.17
  5. Step 5: Solve for x
    x = 1,345,274,211,628.17/1,339,569.71
  6. Step 6: Final answer
    x = 1,004,258.45

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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.