Home / 483,490.57-724,986.70-217,022.69

Finding the Fourth Proportional to 483,490.57, 724,986.70 and 217,022.69

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Solution

The fourth proportional to 483,490.57, 724,986.70 and 217,022.69 is: 325,422.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,490.57 : 724,986.70 = 217,022.69 : x
  2. Step 2: Convert to fraction form
    483,490.57/724,986.70 = 217,022.69/x
  3. Step 3: Cross multiply
    483,490.57x = 724,986.70 × 217,022.69
  4. Step 4: Simplify right side
    483,490.57x = 157,338,566,338.89
  5. Step 5: Solve for x
    x = 157,338,566,338.89/483,490.57
  6. Step 6: Final answer
    x = 325,422.20

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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.