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Finding the Fourth Proportional to 555,001.84, 765,903.90 and 300,354.88

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Solution

The fourth proportional to 555,001.84, 765,903.90 and 300,354.88 is: 414,490.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,001.84 : 765,903.90 = 300,354.88 : x
  2. Step 2: Convert to fraction form
    555,001.84/765,903.90 = 300,354.88/x
  3. Step 3: Cross multiply
    555,001.84x = 765,903.90 × 300,354.88
  4. Step 4: Simplify right side
    555,001.84x = 230,042,973,976.03
  5. Step 5: Solve for x
    x = 230,042,973,976.03/555,001.84
  6. Step 6: Final answer
    x = 414,490.47

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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.