Home / 500,346.09-690,469.31-270,901.55

Finding the Fourth Proportional to 500,346.09, 690,469.31 and 270,901.55

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Solution

The fourth proportional to 500,346.09, 690,469.31 and 270,901.55 is: 373,839.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,346.09 : 690,469.31 = 270,901.55 : x
  2. Step 2: Convert to fraction form
    500,346.09/690,469.31 = 270,901.55/x
  3. Step 3: Cross multiply
    500,346.09x = 690,469.31 × 270,901.55
  4. Step 4: Simplify right side
    500,346.09x = 187,049,201,499.58
  5. Step 5: Solve for x
    x = 187,049,201,499.58/500,346.09
  6. Step 6: Final answer
    x = 373,839.64

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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.