Home / 1,388,860.94-2,083,296.67-489,814.40

Finding the Fourth Proportional to 1,388,860.94, 2,083,296.67 and 489,814.40

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Solution

The fourth proportional to 1,388,860.94, 2,083,296.67 and 489,814.40 is: 734,723.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,860.94 : 2,083,296.67 = 489,814.40 : x
  2. Step 2: Convert to fraction form
    1,388,860.94/2,083,296.67 = 489,814.40/x
  3. Step 3: Cross multiply
    1,388,860.94x = 2,083,296.67 × 489,814.40
  4. Step 4: Simplify right side
    1,388,860.94x = 1,020,428,708,438.05
  5. Step 5: Solve for x
    x = 1,020,428,708,438.05/1,388,860.94
  6. Step 6: Final answer
    x = 734,723.46

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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.