Home / 990,929.16-1,367,436.33-561,212.43

Finding the Fourth Proportional to 990,929.16, 1,367,436.33 and 561,212.43

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Solution

The fourth proportional to 990,929.16, 1,367,436.33 and 561,212.43 is: 774,447.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,929.16 : 1,367,436.33 = 561,212.43 : x
  2. Step 2: Convert to fraction form
    990,929.16/1,367,436.33 = 561,212.43/x
  3. Step 3: Cross multiply
    990,929.16x = 1,367,436.33 × 561,212.43
  4. Step 4: Simplify right side
    990,929.16x = 767,422,265,629.58
  5. Step 5: Solve for x
    x = 767,422,265,629.58/990,929.16
  6. Step 6: Final answer
    x = 774,447.15

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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.