Home / 979,530.40-1,469,295.60-348,464.80

Finding the Fourth Proportional to 979,530.40, 1,469,295.60 and 348,464.80

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Solution

The fourth proportional to 979,530.40, 1,469,295.60 and 348,464.80 is: 522,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,530.40 : 1,469,295.60 = 348,464.80 : x
  2. Step 2: Convert to fraction form
    979,530.40/1,469,295.60 = 348,464.80/x
  3. Step 3: Cross multiply
    979,530.40x = 1,469,295.60 × 348,464.80
  4. Step 4: Simplify right side
    979,530.40x = 511,997,797,394.88
  5. Step 5: Solve for x
    x = 511,997,797,394.88/979,530.40
  6. Step 6: Final answer
    x = 522,697.20

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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.