Home / 1,219,082.55-1,828,744.11-420,258.93

Finding the Fourth Proportional to 1,219,082.55, 1,828,744.11 and 420,258.93

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Solution

The fourth proportional to 1,219,082.55, 1,828,744.11 and 420,258.93 is: 630,429.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,082.55 : 1,828,744.11 = 420,258.93 : x
  2. Step 2: Convert to fraction form
    1,219,082.55/1,828,744.11 = 420,258.93/x
  3. Step 3: Cross multiply
    1,219,082.55x = 1,828,744.11 × 420,258.93
  4. Step 4: Simplify right side
    1,219,082.55x = 768,546,042,912.40
  5. Step 5: Solve for x
    x = 768,546,042,912.40/1,219,082.55
  6. Step 6: Final answer
    x = 630,429.86

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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.