Home / 2,312,120.55-3,190,702.84-1,279,630.33

Finding the Fourth Proportional to 2,312,120.55, 3,190,702.84 and 1,279,630.33

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Solution

The fourth proportional to 2,312,120.55, 3,190,702.84 and 1,279,630.33 is: 1,765,876.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312,120.55 : 3,190,702.84 = 1,279,630.33 : x
  2. Step 2: Convert to fraction form
    2,312,120.55/3,190,702.84 = 1,279,630.33/x
  3. Step 3: Cross multiply
    2,312,120.55x = 3,190,702.84 × 1,279,630.33
  4. Step 4: Simplify right side
    2,312,120.55x = 4,082,920,133,077.08
  5. Step 5: Solve for x
    x = 4,082,920,133,077.08/2,312,120.55
  6. Step 6: Final answer
    x = 1,765,876.84

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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.