Home / 449,301.24-618,981.96-313,088

Finding the Fourth Proportional to 449,301.24, 618,981.96 and 313,088

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Solution

The fourth proportional to 449,301.24, 618,981.96 and 313,088 is: 431,327.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,301.24 : 618,981.96 = 313,088 : x
  2. Step 2: Convert to fraction form
    449,301.24/618,981.96 = 313,088/x
  3. Step 3: Cross multiply
    449,301.24x = 618,981.96 × 313,088
  4. Step 4: Simplify right side
    449,301.24x = 193,795,823,892.48
  5. Step 5: Solve for x
    x = 193,795,823,892.48/449,301.24
  6. Step 6: Final answer
    x = 431,327.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.