Home / 1,382,042.85-1,907,284.08-809,267.55

Finding the Fourth Proportional to 1,382,042.85, 1,907,284.08 and 809,267.55

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Solution

The fourth proportional to 1,382,042.85, 1,907,284.08 and 809,267.55 is: 1,116,827.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,042.85 : 1,907,284.08 = 809,267.55 : x
  2. Step 2: Convert to fraction form
    1,382,042.85/1,907,284.08 = 809,267.55/x
  3. Step 3: Cross multiply
    1,382,042.85x = 1,907,284.08 × 809,267.55
  4. Step 4: Simplify right side
    1,382,042.85x = 1,543,503,114,575.60
  5. Step 5: Solve for x
    x = 1,543,503,114,575.60/1,382,042.85
  6. Step 6: Final answer
    x = 1,116,827.25

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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.