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Finding the Fourth Proportional to 486,361.60, 730,003.20 and 299,737.60

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Solution

The fourth proportional to 486,361.60, 730,003.20 and 299,737.60 is: 449,890.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,361.60 : 730,003.20 = 299,737.60 : x
  2. Step 2: Convert to fraction form
    486,361.60/730,003.20 = 299,737.60/x
  3. Step 3: Cross multiply
    486,361.60x = 730,003.20 × 299,737.60
  4. Step 4: Simplify right side
    486,361.60x = 218,809,407,160.32
  5. Step 5: Solve for x
    x = 218,809,407,160.32/486,361.60
  6. Step 6: Final answer
    x = 449,890.38

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1.5x scale

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.