Home / 492,556.96-738,835.43-380,400.76

Finding the Fourth Proportional to 492,556.96, 738,835.43 and 380,400.76

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Solution

The fourth proportional to 492,556.96, 738,835.43 and 380,400.76 is: 570,601.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,556.96 : 738,835.43 = 380,400.76 : x
  2. Step 2: Convert to fraction form
    492,556.96/738,835.43 = 380,400.76/x
  3. Step 3: Cross multiply
    492,556.96x = 738,835.43 × 380,400.76
  4. Step 4: Simplify right side
    492,556.96x = 281,053,559,086.93
  5. Step 5: Solve for x
    x = 281,053,559,086.93/492,556.96
  6. Step 6: Final answer
    x = 570,601.14

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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.