Home / 498,930.48-748,394.91-143,946.36

Finding the Fourth Proportional to 498,930.48, 748,394.91 and 143,946.36

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Solution

The fourth proportional to 498,930.48, 748,394.91 and 143,946.36 is: 215,919.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,930.48 : 748,394.91 = 143,946.36 : x
  2. Step 2: Convert to fraction form
    498,930.48/748,394.91 = 143,946.36/x
  3. Step 3: Cross multiply
    498,930.48x = 748,394.91 × 143,946.36
  4. Step 4: Simplify right side
    498,930.48x = 107,728,723,137.03
  5. Step 5: Solve for x
    x = 107,728,723,137.03/498,930.48
  6. Step 6: Final answer
    x = 215,919.31

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1.5x scale

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.