Home / 990,941.31-1,367,517.03-561,310.65

Finding the Fourth Proportional to 990,941.31, 1,367,517.03 and 561,310.65

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Solution

The fourth proportional to 990,941.31, 1,367,517.03 and 561,310.65 is: 774,618.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,941.31 : 1,367,517.03 = 561,310.65 : x
  2. Step 2: Convert to fraction form
    990,941.31/1,367,517.03 = 561,310.65/x
  3. Step 3: Cross multiply
    990,941.31x = 1,367,517.03 × 561,310.65
  4. Step 4: Simplify right side
    990,941.31x = 767,601,872,995.37
  5. Step 5: Solve for x
    x = 767,601,872,995.37/990,941.31
  6. Step 6: Final answer
    x = 774,618.91

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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.