Home / 1,238,781-1,856,916.84-839,462.36

Finding the Fourth Proportional to 1,238,781, 1,856,916.84 and 839,462.36

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Solution

The fourth proportional to 1,238,781, 1,856,916.84 and 839,462.36 is: 1,258,343.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,781 : 1,856,916.84 = 839,462.36 : x
  2. Step 2: Convert to fraction form
    1,238,781/1,856,916.84 = 839,462.36/x
  3. Step 3: Cross multiply
    1,238,781x = 1,856,916.84 × 839,462.36
  4. Step 4: Simplify right side
    1,238,781x = 1,558,811,792,830.14
  5. Step 5: Solve for x
    x = 1,558,811,792,830.14/1,238,781
  6. Step 6: Final answer
    x = 1,258,343.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.