Home / 987,502.47-1,481,304.93-313,636.51

Finding the Fourth Proportional to 987,502.47, 1,481,304.93 and 313,636.51

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Solution

The fourth proportional to 987,502.47, 1,481,304.93 and 313,636.51 is: 470,471.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,502.47 : 1,481,304.93 = 313,636.51 : x
  2. Step 2: Convert to fraction form
    987,502.47/1,481,304.93 = 313,636.51/x
  3. Step 3: Cross multiply
    987,502.47x = 1,481,304.93 × 313,636.51
  4. Step 4: Simplify right side
    987,502.47x = 464,591,308,490.99
  5. Step 5: Solve for x
    x = 464,591,308,490.99/987,502.47
  6. Step 6: Final answer
    x = 470,471.03

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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.