Home / 1,290,310.40-1,935,004.80-448,889.60

Finding the Fourth Proportional to 1,290,310.40, 1,935,004.80 and 448,889.60

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Solution

The fourth proportional to 1,290,310.40, 1,935,004.80 and 448,889.60 is: 673,174.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,310.40 : 1,935,004.80 = 448,889.60 : x
  2. Step 2: Convert to fraction form
    1,290,310.40/1,935,004.80 = 448,889.60/x
  3. Step 3: Cross multiply
    1,290,310.40x = 1,935,004.80 × 448,889.60
  4. Step 4: Simplify right side
    1,290,310.40x = 868,603,530,670.08
  5. Step 5: Solve for x
    x = 868,603,530,670.08/1,290,310.40
  6. Step 6: Final answer
    x = 673,174.09

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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.