Home / 668,756.09-1,002,361.37-308,173.04

Finding the Fourth Proportional to 668,756.09, 1,002,361.37 and 308,173.04

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Solution

The fourth proportional to 668,756.09, 1,002,361.37 and 308,173.04 is: 461,903.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,756.09 : 1,002,361.37 = 308,173.04 : x
  2. Step 2: Convert to fraction form
    668,756.09/1,002,361.37 = 308,173.04/x
  3. Step 3: Cross multiply
    668,756.09x = 1,002,361.37 × 308,173.04
  4. Step 4: Simplify right side
    668,756.09x = 308,900,744,018.79
  5. Step 5: Solve for x
    x = 308,900,744,018.79/668,756.09
  6. Step 6: Final answer
    x = 461,903.45

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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.