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Finding the Fourth Proportional to 555,016.68, 765,925.47 and 300,367.94

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Solution

The fourth proportional to 555,016.68, 765,925.47 and 300,367.94 is: 414,509.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,016.68 : 765,925.47 = 300,367.94 : x
  2. Step 2: Convert to fraction form
    555,016.68/765,925.47 = 300,367.94/x
  3. Step 3: Cross multiply
    555,016.68x = 765,925.47 × 300,367.94
  4. Step 4: Simplify right side
    555,016.68x = 230,059,451,787.80
  5. Step 5: Solve for x
    x = 230,059,451,787.80/555,016.68
  6. Step 6: Final answer
    x = 414,509.08

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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.