Home / 987,823.25-1,481,580.42-313,816.28

Finding the Fourth Proportional to 987,823.25, 1,481,580.42 and 313,816.28

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Solution

The fourth proportional to 987,823.25, 1,481,580.42 and 313,816.28 is: 470,675.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,823.25 : 1,481,580.42 = 313,816.28 : x
  2. Step 2: Convert to fraction form
    987,823.25/1,481,580.42 = 313,816.28/x
  3. Step 3: Cross multiply
    987,823.25x = 1,481,580.42 × 313,816.28
  4. Step 4: Simplify right side
    987,823.25x = 464,944,047,340.53
  5. Step 5: Solve for x
    x = 464,944,047,340.53/987,823.25
  6. Step 6: Final answer
    x = 470,675.34

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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.