Home / 979,811.20-1,468,161.60-646,998.40

Finding the Fourth Proportional to 979,811.20, 1,468,161.60 and 646,998.40

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Solution

The fourth proportional to 979,811.20, 1,468,161.60 and 646,998.40 is: 969,470.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,811.20 : 1,468,161.60 = 646,998.40 : x
  2. Step 2: Convert to fraction form
    979,811.20/1,468,161.60 = 646,998.40/x
  3. Step 3: Cross multiply
    979,811.20x = 1,468,161.60 × 646,998.40
  4. Step 4: Simplify right side
    979,811.20x = 949,898,206,141.44
  5. Step 5: Solve for x
    x = 949,898,206,141.44/979,811.20
  6. Step 6: Final answer
    x = 969,470.66

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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.