Home / 987,501.47-1,481,303.43-313,635.51

Finding the Fourth Proportional to 987,501.47, 1,481,303.43 and 313,635.51

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Solution

The fourth proportional to 987,501.47, 1,481,303.43 and 313,635.51 is: 470,469.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,501.47 : 1,481,303.43 = 313,635.51 : x
  2. Step 2: Convert to fraction form
    987,501.47/1,481,303.43 = 313,635.51/x
  3. Step 3: Cross multiply
    987,501.47x = 1,481,303.43 × 313,635.51
  4. Step 4: Simplify right side
    987,501.47x = 464,589,356,732.80
  5. Step 5: Solve for x
    x = 464,589,356,732.80/987,501.47
  6. Step 6: Final answer
    x = 470,469.54

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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.