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Finding the Fourth Proportional to 555,002.32, 765,905.62 and 300,353.52

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Solution

The fourth proportional to 555,002.32, 765,905.62 and 300,353.52 is: 414,489.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,002.32 : 765,905.62 = 300,353.52 : x
  2. Step 2: Convert to fraction form
    555,002.32/765,905.62 = 300,353.52/x
  3. Step 3: Cross multiply
    555,002.32x = 765,905.62 × 300,353.52
  4. Step 4: Simplify right side
    555,002.32x = 230,042,448,954.78
  5. Step 5: Solve for x
    x = 230,042,448,954.78/555,002.32
  6. Step 6: Final answer
    x = 414,489.17

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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.