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Finding the Fourth Proportional to 509,548.80, 764,476.80 and 273,004.80

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Solution

The fourth proportional to 509,548.80, 764,476.80 and 273,004.80 is: 409,589.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,548.80 : 764,476.80 = 273,004.80 : x
  2. Step 2: Convert to fraction form
    509,548.80/764,476.80 = 273,004.80/x
  3. Step 3: Cross multiply
    509,548.80x = 764,476.80 × 273,004.80
  4. Step 4: Simplify right side
    509,548.80x = 208,705,835,888.64
  5. Step 5: Solve for x
    x = 208,705,835,888.64/509,548.80
  6. Step 6: Final answer
    x = 409,589.50

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1.5x scale

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.