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Finding the Fourth Proportional to 526,636.24, 726,740.04 and 300,354.64

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Solution

The fourth proportional to 526,636.24, 726,740.04 and 300,354.64 is: 414,479.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,636.24 : 726,740.04 = 300,354.64 : x
  2. Step 2: Convert to fraction form
    526,636.24/726,740.04 = 300,354.64/x
  3. Step 3: Cross multiply
    526,636.24x = 726,740.04 × 300,354.64
  4. Step 4: Simplify right side
    526,636.24x = 218,279,743,087.79
  5. Step 5: Solve for x
    x = 218,279,743,087.79/526,636.24
  6. Step 6: Final answer
    x = 414,479.15

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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.