Home / 987,963.04-1,481,789.40-313,955.56

Finding the Fourth Proportional to 987,963.04, 1,481,789.40 and 313,955.56

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Solution

The fourth proportional to 987,963.04, 1,481,789.40 and 313,955.56 is: 470,884.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,963.04 : 1,481,789.40 = 313,955.56 : x
  2. Step 2: Convert to fraction form
    987,963.04/1,481,789.40 = 313,955.56/x
  3. Step 3: Cross multiply
    987,963.04x = 1,481,789.40 × 313,955.56
  4. Step 4: Simplify right side
    987,963.04x = 465,216,020,879.06
  5. Step 5: Solve for x
    x = 465,216,020,879.06/987,963.04
  6. Step 6: Final answer
    x = 470,884.03

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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.