Home / 1,388,343.70-2,082,776.26-630,238.38

Finding the Fourth Proportional to 1,388,343.70, 2,082,776.26 and 630,238.38

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Solution

The fourth proportional to 1,388,343.70, 2,082,776.26 and 630,238.38 is: 945,475.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,343.70 : 2,082,776.26 = 630,238.38 : x
  2. Step 2: Convert to fraction form
    1,388,343.70/2,082,776.26 = 630,238.38/x
  3. Step 3: Cross multiply
    1,388,343.70x = 2,082,776.26 × 630,238.38
  4. Step 4: Simplify right side
    1,388,343.70x = 1,312,645,536,004.86
  5. Step 5: Solve for x
    x = 1,312,645,536,004.86/1,388,343.70
  6. Step 6: Final answer
    x = 945,475.92

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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.