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Finding the Fourth Proportional to 550,079.82, 759,105.48 and 308,361.60

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Solution

The fourth proportional to 550,079.82, 759,105.48 and 308,361.60 is: 425,536.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,079.82 : 759,105.48 = 308,361.60 : x
  2. Step 2: Convert to fraction form
    550,079.82/759,105.48 = 308,361.60/x
  3. Step 3: Cross multiply
    550,079.82x = 759,105.48 × 308,361.60
  4. Step 4: Simplify right side
    550,079.82x = 234,078,980,381.57
  5. Step 5: Solve for x
    x = 234,078,980,381.57/550,079.82
  6. Step 6: Final answer
    x = 425,536.39

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1.5x scale

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.