Home / 1,219,720.52-1,828,693.02-509,949.92

Finding the Fourth Proportional to 1,219,720.52, 1,828,693.02 and 509,949.92

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Solution

The fourth proportional to 1,219,720.52, 1,828,693.02 and 509,949.92 is: 764,553.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,720.52 : 1,828,693.02 = 509,949.92 : x
  2. Step 2: Convert to fraction form
    1,219,720.52/1,828,693.02 = 509,949.92/x
  3. Step 3: Cross multiply
    1,219,720.52x = 1,828,693.02 × 509,949.92
  4. Step 4: Simplify right side
    1,219,720.52x = 932,541,859,253.56
  5. Step 5: Solve for x
    x = 932,541,859,253.56/1,219,720.52
  6. Step 6: Final answer
    x = 764,553.72

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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.