Home / 979,467.20-1,469,200.80-662,206.40

Finding the Fourth Proportional to 979,467.20, 1,469,200.80 and 662,206.40

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Solution

The fourth proportional to 979,467.20, 1,469,200.80 and 662,206.40 is: 993,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,467.20 : 1,469,200.80 = 662,206.40 : x
  2. Step 2: Convert to fraction form
    979,467.20/1,469,200.80 = 662,206.40/x
  3. Step 3: Cross multiply
    979,467.20x = 1,469,200.80 × 662,206.40
  4. Step 4: Simplify right side
    979,467.20x = 972,914,172,645.12
  5. Step 5: Solve for x
    x = 972,914,172,645.12/979,467.20
  6. Step 6: Final answer
    x = 993,309.60

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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.