Home / 990,758.09-1,367,246.18-561,121.27

Finding the Fourth Proportional to 990,758.09, 1,367,246.18 and 561,121.27

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Solution

The fourth proportional to 990,758.09, 1,367,246.18 and 561,121.27 is: 774,347.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,758.09 : 1,367,246.18 = 561,121.27 : x
  2. Step 2: Convert to fraction form
    990,758.09/1,367,246.18 = 561,121.27/x
  3. Step 3: Cross multiply
    990,758.09x = 1,367,246.18 × 561,121.27
  4. Step 4: Simplify right side
    990,758.09x = 767,190,910,908.94
  5. Step 5: Solve for x
    x = 767,190,910,908.94/990,758.09
  6. Step 6: Final answer
    x = 774,347.36

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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.