Home / 1,238,706.25-1,857,124.19-812,349.45

Finding the Fourth Proportional to 1,238,706.25, 1,857,124.19 and 812,349.45

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Solution

The fourth proportional to 1,238,706.25, 1,857,124.19 and 812,349.45 is: 1,217,910.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,706.25 : 1,857,124.19 = 812,349.45 : x
  2. Step 2: Convert to fraction form
    1,238,706.25/1,857,124.19 = 812,349.45/x
  3. Step 3: Cross multiply
    1,238,706.25x = 1,857,124.19 × 812,349.45
  4. Step 4: Simplify right side
    1,238,706.25x = 1,508,633,816,359.07
  5. Step 5: Solve for x
    x = 1,508,633,816,359.07/1,238,706.25
  6. Step 6: Final answer
    x = 1,217,910.88

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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.