Home / 1,219,684.72-1,829,196.60-509,564.20

Finding the Fourth Proportional to 1,219,684.72, 1,829,196.60 and 509,564.20

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Solution

The fourth proportional to 1,219,684.72, 1,829,196.60 and 509,564.20 is: 764,208.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,684.72 : 1,829,196.60 = 509,564.20 : x
  2. Step 2: Convert to fraction form
    1,219,684.72/1,829,196.60 = 509,564.20/x
  3. Step 3: Cross multiply
    1,219,684.72x = 1,829,196.60 × 509,564.20
  4. Step 4: Simplify right side
    1,219,684.72x = 932,093,102,121.72
  5. Step 5: Solve for x
    x = 932,093,102,121.72/1,219,684.72
  6. Step 6: Final answer
    x = 764,208.23

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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.