Home / 509,747.12-764,571.31-154,764.21

Finding the Fourth Proportional to 509,747.12, 764,571.31 and 154,764.21

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Solution

The fourth proportional to 509,747.12, 764,571.31 and 154,764.21 is: 232,131.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,747.12 : 764,571.31 = 154,764.21 : x
  2. Step 2: Convert to fraction form
    509,747.12/764,571.31 = 154,764.21/x
  3. Step 3: Cross multiply
    509,747.12x = 764,571.31 × 154,764.21
  4. Step 4: Simplify right side
    509,747.12x = 118,328,274,780.82
  5. Step 5: Solve for x
    x = 118,328,274,780.82/509,747.12
  6. Step 6: Final answer
    x = 232,131.33

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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.