Home / 483,903.18-667,823.80-290,318.18

Finding the Fourth Proportional to 483,903.18, 667,823.80 and 290,318.18

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Solution

The fourth proportional to 483,903.18, 667,823.80 and 290,318.18 is: 400,661.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,903.18 : 667,823.80 = 290,318.18 : x
  2. Step 2: Convert to fraction form
    483,903.18/667,823.80 = 290,318.18/x
  3. Step 3: Cross multiply
    483,903.18x = 667,823.80 × 290,318.18
  4. Step 4: Simplify right side
    483,903.18x = 193,881,389,704.80
  5. Step 5: Solve for x
    x = 193,881,389,704.80/483,903.18
  6. Step 6: Final answer
    x = 400,661.53

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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.