Home / 487,948.82-673,289.02-306,532.27

Finding the Fourth Proportional to 487,948.82, 673,289.02 and 306,532.27

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Solution

The fourth proportional to 487,948.82, 673,289.02 and 306,532.27 is: 422,964.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,948.82 : 673,289.02 = 306,532.27 : x
  2. Step 2: Convert to fraction form
    487,948.82/673,289.02 = 306,532.27/x
  3. Step 3: Cross multiply
    487,948.82x = 673,289.02 × 306,532.27
  4. Step 4: Simplify right side
    487,948.82x = 206,384,809,217.12
  5. Step 5: Solve for x
    x = 206,384,809,217.12/487,948.82
  6. Step 6: Final answer
    x = 422,964.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.