Home / 987,964.04-1,481,790.90-313,956.56

Finding the Fourth Proportional to 987,964.04, 1,481,790.90 and 313,956.56

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Solution

The fourth proportional to 987,964.04, 1,481,790.90 and 313,956.56 is: 470,885.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,964.04 : 1,481,790.90 = 313,956.56 : x
  2. Step 2: Convert to fraction form
    987,964.04/1,481,790.90 = 313,956.56/x
  3. Step 3: Cross multiply
    987,964.04x = 1,481,790.90 × 313,956.56
  4. Step 4: Simplify right side
    987,964.04x = 465,217,973,603.30
  5. Step 5: Solve for x
    x = 465,217,973,603.30/987,964.04
  6. Step 6: Final answer
    x = 470,885.53

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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.