Home / 438,669.12-605,375.04-266,528.64

Finding the Fourth Proportional to 438,669.12, 605,375.04 and 266,528.64

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Solution

The fourth proportional to 438,669.12, 605,375.04 and 266,528.64 is: 367,816.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,669.12 : 605,375.04 = 266,528.64 : x
  2. Step 2: Convert to fraction form
    438,669.12/605,375.04 = 266,528.64/x
  3. Step 3: Cross multiply
    438,669.12x = 605,375.04 × 266,528.64
  4. Step 4: Simplify right side
    438,669.12x = 161,349,786,101.15
  5. Step 5: Solve for x
    x = 161,349,786,101.15/438,669.12
  6. Step 6: Final answer
    x = 367,816.60

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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.