Home / 407,086.56-609,585.36-266,435.04

Finding the Fourth Proportional to 407,086.56, 609,585.36 and 266,435.04

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Solution

The fourth proportional to 407,086.56, 609,585.36 and 266,435.04 is: 398,968.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,086.56 : 609,585.36 = 266,435.04 : x
  2. Step 2: Convert to fraction form
    407,086.56/609,585.36 = 266,435.04/x
  3. Step 3: Cross multiply
    407,086.56x = 609,585.36 × 266,435.04
  4. Step 4: Simplify right side
    407,086.56x = 162,414,899,775.01
  5. Step 5: Solve for x
    x = 162,414,899,775.01/407,086.56
  6. Step 6: Final answer
    x = 398,968.96

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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.