Home / 1,422,863.24-1,963,509.50-778,269.48

Finding the Fourth Proportional to 1,422,863.24, 1,963,509.50 and 778,269.48

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Solution

The fourth proportional to 1,422,863.24, 1,963,509.50 and 778,269.48 is: 1,073,989.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,863.24 : 1,963,509.50 = 778,269.48 : x
  2. Step 2: Convert to fraction form
    1,422,863.24/1,963,509.50 = 778,269.48/x
  3. Step 3: Cross multiply
    1,422,863.24x = 1,963,509.50 × 778,269.48
  4. Step 4: Simplify right side
    1,422,863.24x = 1,528,139,517,540.06
  5. Step 5: Solve for x
    x = 1,528,139,517,540.06/1,422,863.24
  6. Step 6: Final answer
    x = 1,073,989.03

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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.