Home / 500,369.89-690,507.55-270,922.44

Finding the Fourth Proportional to 500,369.89, 690,507.55 and 270,922.44

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Solution

The fourth proportional to 500,369.89, 690,507.55 and 270,922.44 is: 373,871.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,369.89 : 690,507.55 = 270,922.44 : x
  2. Step 2: Convert to fraction form
    500,369.89/690,507.55 = 270,922.44/x
  3. Step 3: Cross multiply
    500,369.89x = 690,507.55 × 270,922.44
  4. Step 4: Simplify right side
    500,369.89x = 187,073,987,457.14
  5. Step 5: Solve for x
    x = 187,073,987,457.14/500,369.89
  6. Step 6: Final answer
    x = 373,871.39

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1.5x scale

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.