Home / 996,940.20-1,495,604.70-428,320.20

Finding the Fourth Proportional to 996,940.20, 1,495,604.70 and 428,320.20

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Solution

The fourth proportional to 996,940.20, 1,495,604.70 and 428,320.20 is: 642,563.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,940.20 : 1,495,604.70 = 428,320.20 : x
  2. Step 2: Convert to fraction form
    996,940.20/1,495,604.70 = 428,320.20/x
  3. Step 3: Cross multiply
    996,940.20x = 1,495,604.70 × 428,320.20
  4. Step 4: Simplify right side
    996,940.20x = 640,597,704,224.94
  5. Step 5: Solve for x
    x = 640,597,704,224.94/996,940.20
  6. Step 6: Final answer
    x = 642,563.82

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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.