Home / 1,326,679.38-1,990,040.67-380,046.42

Finding the Fourth Proportional to 1,326,679.38, 1,990,040.67 and 380,046.42

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Solution

The fourth proportional to 1,326,679.38, 1,990,040.67 and 380,046.42 is: 570,075.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,679.38 : 1,990,040.67 = 380,046.42 : x
  2. Step 2: Convert to fraction form
    1,326,679.38/1,990,040.67 = 380,046.42/x
  3. Step 3: Cross multiply
    1,326,679.38x = 1,990,040.67 × 380,046.42
  4. Step 4: Simplify right side
    1,326,679.38x = 756,307,832,287.90
  5. Step 5: Solve for x
    x = 756,307,832,287.90/1,326,679.38
  6. Step 6: Final answer
    x = 570,075.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.