Home / 1,422,555.10-1,963,121.81-769,176.48

Finding the Fourth Proportional to 1,422,555.10, 1,963,121.81 and 769,176.48

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Solution

The fourth proportional to 1,422,555.10, 1,963,121.81 and 769,176.48 is: 1,061,461.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,555.10 : 1,963,121.81 = 769,176.48 : x
  2. Step 2: Convert to fraction form
    1,422,555.10/1,963,121.81 = 769,176.48/x
  3. Step 3: Cross multiply
    1,422,555.10x = 1,963,121.81 × 769,176.48
  4. Step 4: Simplify right side
    1,422,555.10x = 1,509,987,127,142.85
  5. Step 5: Solve for x
    x = 1,509,987,127,142.85/1,422,555.10
  6. Step 6: Final answer
    x = 1,061,461.26

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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.