Home / 1,238,807.78-1,856,956.70-839,488.94

Finding the Fourth Proportional to 1,238,807.78, 1,856,956.70 and 839,488.94

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Solution

The fourth proportional to 1,238,807.78, 1,856,956.70 and 839,488.94 is: 1,258,382.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,807.78 : 1,856,956.70 = 839,488.94 : x
  2. Step 2: Convert to fraction form
    1,238,807.78/1,856,956.70 = 839,488.94/x
  3. Step 3: Cross multiply
    1,238,807.78x = 1,856,956.70 × 839,488.94
  4. Step 4: Simplify right side
    1,238,807.78x = 1,558,894,611,708.90
  5. Step 5: Solve for x
    x = 1,558,894,611,708.90/1,238,807.78
  6. Step 6: Final answer
    x = 1,258,382.97

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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.