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Finding the Fourth Proportional to 442,648.88, 664,109.40 and 395,604.08

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Solution

The fourth proportional to 442,648.88, 664,109.40 and 395,604.08 is: 593,527.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,648.88 : 664,109.40 = 395,604.08 : x
  2. Step 2: Convert to fraction form
    442,648.88/664,109.40 = 395,604.08/x
  3. Step 3: Cross multiply
    442,648.88x = 664,109.40 × 395,604.08
  4. Step 4: Simplify right side
    442,648.88x = 262,724,388,206.35
  5. Step 5: Solve for x
    x = 262,724,388,206.35/442,648.88
  6. Step 6: Final answer
    x = 593,527.74

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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.