Home / 987,450.80-1,481,227.28-313,584.72

Finding the Fourth Proportional to 987,450.80, 1,481,227.28 and 313,584.72

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Solution

The fourth proportional to 987,450.80, 1,481,227.28 and 313,584.72 is: 470,393.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,450.80 : 1,481,227.28 = 313,584.72 : x
  2. Step 2: Convert to fraction form
    987,450.80/1,481,227.28 = 313,584.72/x
  3. Step 3: Cross multiply
    987,450.80x = 1,481,227.28 × 313,584.72
  4. Step 4: Simplify right side
    987,450.80x = 464,490,241,855.16
  5. Step 5: Solve for x
    x = 464,490,241,855.16/987,450.80
  6. Step 6: Final answer
    x = 470,393.30

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1.5x scale

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.