Home / 1,382,077.80-1,907,332.38-809,302.50

Finding the Fourth Proportional to 1,382,077.80, 1,907,332.38 and 809,302.50

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Solution

The fourth proportional to 1,382,077.80, 1,907,332.38 and 809,302.50 is: 1,116,875.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,077.80 : 1,907,332.38 = 809,302.50 : x
  2. Step 2: Convert to fraction form
    1,382,077.80/1,907,332.38 = 809,302.50/x
  3. Step 3: Cross multiply
    1,382,077.80x = 1,907,332.38 × 809,302.50
  4. Step 4: Simplify right side
    1,382,077.80x = 1,543,608,863,464.95
  5. Step 5: Solve for x
    x = 1,543,608,863,464.95/1,382,077.80
  6. Step 6: Final answer
    x = 1,116,875.52

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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.