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Finding the Fourth Proportional to 398,550.60, 598,858.38 and 299,643.12

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Solution

The fourth proportional to 398,550.60, 598,858.38 and 299,643.12 is: 450,240.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,550.60 : 598,858.38 = 299,643.12 : x
  2. Step 2: Convert to fraction form
    398,550.60/598,858.38 = 299,643.12/x
  3. Step 3: Cross multiply
    398,550.60x = 598,858.38 × 299,643.12
  4. Step 4: Simplify right side
    398,550.60x = 179,443,793,421.35
  5. Step 5: Solve for x
    x = 179,443,793,421.35/398,550.60
  6. Step 6: Final answer
    x = 450,240.93

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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.