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Finding the Fourth Proportional to 521,050.50, 719,049.69 and 282,586.50

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Solution

The fourth proportional to 521,050.50, 719,049.69 and 282,586.50 is: 389,969.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,050.50 : 719,049.69 = 282,586.50 : x
  2. Step 2: Convert to fraction form
    521,050.50/719,049.69 = 282,586.50/x
  3. Step 3: Cross multiply
    521,050.50x = 719,049.69 × 282,586.50
  4. Step 4: Simplify right side
    521,050.50x = 203,193,735,223.19
  5. Step 5: Solve for x
    x = 203,193,735,223.19/521,050.50
  6. Step 6: Final answer
    x = 389,969.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.