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Finding the Fourth Proportional to 545,125.55, 751,954.39 and 354,266.06

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Solution

The fourth proportional to 545,125.55, 751,954.39 and 354,266.06 is: 488,679.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,125.55 : 751,954.39 = 354,266.06 : x
  2. Step 2: Convert to fraction form
    545,125.55/751,954.39 = 354,266.06/x
  3. Step 3: Cross multiply
    545,125.55x = 751,954.39 × 354,266.06
  4. Step 4: Simplify right side
    545,125.55x = 266,391,914,399.57
  5. Step 5: Solve for x
    x = 266,391,914,399.57/545,125.55
  6. Step 6: Final answer
    x = 488,679.93

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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.