Home / 987,497.47-1,481,297.43-313,631.51

Finding the Fourth Proportional to 987,497.47, 1,481,297.43 and 313,631.51

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Solution

The fourth proportional to 987,497.47, 1,481,297.43 and 313,631.51 is: 470,463.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,497.47 : 1,481,297.43 = 313,631.51 : x
  2. Step 2: Convert to fraction form
    987,497.47/1,481,297.43 = 313,631.51/x
  3. Step 3: Cross multiply
    987,497.47x = 1,481,297.43 × 313,631.51
  4. Step 4: Simplify right side
    987,497.47x = 464,581,540,755.38
  5. Step 5: Solve for x
    x = 464,581,540,755.38/987,497.47
  6. Step 6: Final answer
    x = 470,463.53

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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.