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Finding the Fourth Proportional to 509,514.80, 764,574.60 and 194,003.60

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Solution

The fourth proportional to 509,514.80, 764,574.60 and 194,003.60 is: 291,120.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,514.80 : 764,574.60 = 194,003.60 : x
  2. Step 2: Convert to fraction form
    509,514.80/764,574.60 = 194,003.60/x
  3. Step 3: Cross multiply
    509,514.80x = 764,574.60 × 194,003.60
  4. Step 4: Simplify right side
    509,514.80x = 148,330,224,868.56
  5. Step 5: Solve for x
    x = 148,330,224,868.56/509,514.80
  6. Step 6: Final answer
    x = 291,120.54

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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.