Home / 509,743.50-764,172.36-298,938.57

Finding the Fourth Proportional to 509,743.50, 764,172.36 and 298,938.57

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Solution

The fourth proportional to 509,743.50, 764,172.36 and 298,938.57 is: 448,148.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,743.50 : 764,172.36 = 298,938.57 : x
  2. Step 2: Convert to fraction form
    509,743.50/764,172.36 = 298,938.57/x
  3. Step 3: Cross multiply
    509,743.50x = 764,172.36 × 298,938.57
  4. Step 4: Simplify right side
    509,743.50x = 228,440,592,531.93
  5. Step 5: Solve for x
    x = 228,440,592,531.93/509,743.50
  6. Step 6: Final answer
    x = 448,148.12

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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.