Home / 509,440.54-764,113.96-172,442.67

Finding the Fourth Proportional to 509,440.54, 764,113.96 and 172,442.67

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Solution

The fourth proportional to 509,440.54, 764,113.96 and 172,442.67 is: 258,648.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,440.54 : 764,113.96 = 172,442.67 : x
  2. Step 2: Convert to fraction form
    509,440.54/764,113.96 = 172,442.67/x
  3. Step 3: Cross multiply
    509,440.54x = 764,113.96 × 172,442.67
  4. Step 4: Simplify right side
    509,440.54x = 131,765,852,124.95
  5. Step 5: Solve for x
    x = 131,765,852,124.95/509,440.54
  6. Step 6: Final answer
    x = 258,648.15

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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.