Home / 684,783.20-1,025,230.80-647,544.80

Finding the Fourth Proportional to 684,783.20, 1,025,230.80 and 647,544.80

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Solution

The fourth proportional to 684,783.20, 1,025,230.80 and 647,544.80 is: 969,478.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,783.20 : 1,025,230.80 = 647,544.80 : x
  2. Step 2: Convert to fraction form
    684,783.20/1,025,230.80 = 647,544.80/x
  3. Step 3: Cross multiply
    684,783.20x = 1,025,230.80 × 647,544.80
  4. Step 4: Simplify right side
    684,783.20x = 663,882,873,339.84
  5. Step 5: Solve for x
    x = 663,882,873,339.84/684,783.20
  6. Step 6: Final answer
    x = 969,478.91

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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.