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Finding the Fourth Proportional to 499,941.72, 690,241.50 and 446,134.23

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Solution

The fourth proportional to 499,941.72, 690,241.50 and 446,134.23 is: 615,952.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,941.72 : 690,241.50 = 446,134.23 : x
  2. Step 2: Convert to fraction form
    499,941.72/690,241.50 = 446,134.23/x
  3. Step 3: Cross multiply
    499,941.72x = 690,241.50 × 446,134.23
  4. Step 4: Simplify right side
    499,941.72x = 307,940,360,116.55
  5. Step 5: Solve for x
    x = 307,940,360,116.55/499,941.72
  6. Step 6: Final answer
    x = 615,952.52

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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.