Home / 1,385,272.57-1,912,324.08-804,382.55

Finding the Fourth Proportional to 1,385,272.57, 1,912,324.08 and 804,382.55

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Solution

The fourth proportional to 1,385,272.57, 1,912,324.08 and 804,382.55 is: 1,110,424.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,272.57 : 1,912,324.08 = 804,382.55 : x
  2. Step 2: Convert to fraction form
    1,385,272.57/1,912,324.08 = 804,382.55/x
  3. Step 3: Cross multiply
    1,385,272.57x = 1,912,324.08 × 804,382.55
  4. Step 4: Simplify right side
    1,385,272.57x = 1,538,240,119,896.80
  5. Step 5: Solve for x
    x = 1,538,240,119,896.80/1,385,272.57
  6. Step 6: Final answer
    x = 1,110,424.15

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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.