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Finding the Fourth Proportional to 479,259.32, 661,380.08 and 264,399.30

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Solution

The fourth proportional to 479,259.32, 661,380.08 and 264,399.30 is: 364,872.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,259.32 : 661,380.08 = 264,399.30 : x
  2. Step 2: Convert to fraction form
    479,259.32/661,380.08 = 264,399.30/x
  3. Step 3: Cross multiply
    479,259.32x = 661,380.08 × 264,399.30
  4. Step 4: Simplify right side
    479,259.32x = 174,868,428,863.95
  5. Step 5: Solve for x
    x = 174,868,428,863.95/479,259.32
  6. Step 6: Final answer
    x = 364,872.26

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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.