Home / 1,206,169.21-1,664,663.49-689,851.41

Finding the Fourth Proportional to 1,206,169.21, 1,664,663.49 and 689,851.41

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Solution

The fourth proportional to 1,206,169.21, 1,664,663.49 and 689,851.41 is: 952,080.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,169.21 : 1,664,663.49 = 689,851.41 : x
  2. Step 2: Convert to fraction form
    1,206,169.21/1,664,663.49 = 689,851.41/x
  3. Step 3: Cross multiply
    1,206,169.21x = 1,664,663.49 × 689,851.41
  4. Step 4: Simplify right side
    1,206,169.21x = 1,148,370,455,752.02
  5. Step 5: Solve for x
    x = 1,148,370,455,752.02/1,206,169.21
  6. Step 6: Final answer
    x = 952,080.72

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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.