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Finding the Fourth Proportional to 398,630.32, 597,268.86 and 240,526.60

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Solution

The fourth proportional to 398,630.32, 597,268.86 and 240,526.60 is: 360,381.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,630.32 : 597,268.86 = 240,526.60 : x
  2. Step 2: Convert to fraction form
    398,630.32/597,268.86 = 240,526.60/x
  3. Step 3: Cross multiply
    398,630.32x = 597,268.86 × 240,526.60
  4. Step 4: Simplify right side
    398,630.32x = 143,659,048,181.68
  5. Step 5: Solve for x
    x = 143,659,048,181.68/398,630.32
  6. Step 6: Final answer
    x = 360,381.64

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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.