Home / 1,438,782.54-1,986,315.39-865,963.50

Finding the Fourth Proportional to 1,438,782.54, 1,986,315.39 and 865,963.50

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Solution

The fourth proportional to 1,438,782.54, 1,986,315.39 and 865,963.50 is: 1,195,508.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,782.54 : 1,986,315.39 = 865,963.50 : x
  2. Step 2: Convert to fraction form
    1,438,782.54/1,986,315.39 = 865,963.50/x
  3. Step 3: Cross multiply
    1,438,782.54x = 1,986,315.39 × 865,963.50
  4. Step 4: Simplify right side
    1,438,782.54x = 1,720,076,627,228.27
  5. Step 5: Solve for x
    x = 1,720,076,627,228.27/1,438,782.54
  6. Step 6: Final answer
    x = 1,195,508.41

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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.