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Finding the Fourth Proportional to 555,023.17, 765,932.03 and 300,374.35

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Solution

The fourth proportional to 555,023.17, 765,932.03 and 300,374.35 is: 414,516.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,023.17 : 765,932.03 = 300,374.35 : x
  2. Step 2: Convert to fraction form
    555,023.17/765,932.03 = 300,374.35/x
  3. Step 3: Cross multiply
    555,023.17x = 765,932.03 × 300,374.35
  4. Step 4: Simplify right side
    555,023.17x = 230,066,335,655.43
  5. Step 5: Solve for x
    x = 230,066,335,655.43/555,023.17
  6. Step 6: Final answer
    x = 414,516.64

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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.