Home / 1,213,920.28-1,821,114.78-465,907.96

Finding the Fourth Proportional to 1,213,920.28, 1,821,114.78 and 465,907.96

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Solution

The fourth proportional to 1,213,920.28, 1,821,114.78 and 465,907.96 is: 698,951.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,920.28 : 1,821,114.78 = 465,907.96 : x
  2. Step 2: Convert to fraction form
    1,213,920.28/1,821,114.78 = 465,907.96/x
  3. Step 3: Cross multiply
    1,213,920.28x = 1,821,114.78 × 465,907.96
  4. Step 4: Simplify right side
    1,213,920.28x = 848,471,872,075.65
  5. Step 5: Solve for x
    x = 848,471,872,075.65/1,213,920.28
  6. Step 6: Final answer
    x = 698,951.89

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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.