Home / 487,816.44-731,942.82-310,277.40

Finding the Fourth Proportional to 487,816.44, 731,942.82 and 310,277.40

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Solution

The fourth proportional to 487,816.44, 731,942.82 and 310,277.40 is: 465,554.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,816.44 : 731,942.82 = 310,277.40 : x
  2. Step 2: Convert to fraction form
    487,816.44/731,942.82 = 310,277.40/x
  3. Step 3: Cross multiply
    487,816.44x = 731,942.82 × 310,277.40
  4. Step 4: Simplify right side
    487,816.44x = 227,105,315,138.27
  5. Step 5: Solve for x
    x = 227,105,315,138.27/487,816.44
  6. Step 6: Final answer
    x = 465,554.86

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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.