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Finding the Fourth Proportional to 669,401, 923,779.86 and 367,601.48

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Solution

The fourth proportional to 669,401, 923,779.86 and 367,601.48 is: 507,293.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,401 : 923,779.86 = 367,601.48 : x
  2. Step 2: Convert to fraction form
    669,401/923,779.86 = 367,601.48/x
  3. Step 3: Cross multiply
    669,401x = 923,779.86 × 367,601.48
  4. Step 4: Simplify right side
    669,401x = 339,582,843,730.19
  5. Step 5: Solve for x
    x = 339,582,843,730.19/669,401
  6. Step 6: Final answer
    x = 507,293.60

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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.