Home / 1,109,648.68-1,531,314.66-626,315.20

Finding the Fourth Proportional to 1,109,648.68, 1,531,314.66 and 626,315.20

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Solution

The fourth proportional to 1,109,648.68, 1,531,314.66 and 626,315.20 is: 864,314.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,648.68 : 1,531,314.66 = 626,315.20 : x
  2. Step 2: Convert to fraction form
    1,109,648.68/1,531,314.66 = 626,315.20/x
  3. Step 3: Cross multiply
    1,109,648.68x = 1,531,314.66 × 626,315.20
  4. Step 4: Simplify right side
    1,109,648.68x = 959,085,647,540.83
  5. Step 5: Solve for x
    x = 959,085,647,540.83/1,109,648.68
  6. Step 6: Final answer
    x = 864,314.68

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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.