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Finding the Fourth Proportional to 555,006.34, 765,909.69 and 300,357.73

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Solution

The fourth proportional to 555,006.34, 765,909.69 and 300,357.73 is: 414,494.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,006.34 : 765,909.69 = 300,357.73 : x
  2. Step 2: Convert to fraction form
    555,006.34/765,909.69 = 300,357.73/x
  3. Step 3: Cross multiply
    555,006.34x = 765,909.69 × 300,357.73
  4. Step 4: Simplify right side
    555,006.34x = 230,046,895,873.40
  5. Step 5: Solve for x
    x = 230,046,895,873.40/555,006.34
  6. Step 6: Final answer
    x = 414,494.18

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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.