Home / 669,344.36-1,004,016.90-420,201.32

Finding the Fourth Proportional to 669,344.36, 1,004,016.90 and 420,201.32

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Solution

The fourth proportional to 669,344.36, 1,004,016.90 and 420,201.32 is: 630,302.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,344.36 : 1,004,016.90 = 420,201.32 : x
  2. Step 2: Convert to fraction form
    669,344.36/1,004,016.90 = 420,201.32/x
  3. Step 3: Cross multiply
    669,344.36x = 1,004,016.90 × 420,201.32
  4. Step 4: Simplify right side
    669,344.36x = 421,889,226,682.31
  5. Step 5: Solve for x
    x = 421,889,226,682.31/669,344.36
  6. Step 6: Final answer
    x = 630,302.21

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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.