Home / 487,949.15-673,289.46-306,532.58

Finding the Fourth Proportional to 487,949.15, 673,289.46 and 306,532.58

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Solution

The fourth proportional to 487,949.15, 673,289.46 and 306,532.58 is: 422,964.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,949.15 : 673,289.46 = 306,532.58 : x
  2. Step 2: Convert to fraction form
    487,949.15/673,289.46 = 306,532.58/x
  3. Step 3: Cross multiply
    487,949.15x = 673,289.46 × 306,532.58
  4. Step 4: Simplify right side
    487,949.15x = 206,385,151,894.16
  5. Step 5: Solve for x
    x = 206,385,151,894.16/487,949.15
  6. Step 6: Final answer
    x = 422,964.47

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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.