Home / 979,933.20-1,468,344.60-647,120.40

Finding the Fourth Proportional to 979,933.20, 1,468,344.60 and 647,120.40

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Solution

The fourth proportional to 979,933.20, 1,468,344.60 and 647,120.40 is: 969,653.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,933.20 : 1,468,344.60 = 647,120.40 : x
  2. Step 2: Convert to fraction form
    979,933.20/1,468,344.60 = 647,120.40/x
  3. Step 3: Cross multiply
    979,933.20x = 1,468,344.60 × 647,120.40
  4. Step 4: Simplify right side
    979,933.20x = 950,195,744,889.84
  5. Step 5: Solve for x
    x = 950,195,744,889.84/979,933.20
  6. Step 6: Final answer
    x = 969,653.59

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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.