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Finding the Fourth Proportional to 554,981.25, 765,874.08 and 300,332.43

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Solution

The fourth proportional to 554,981.25, 765,874.08 and 300,332.43 is: 414,458.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,981.25 : 765,874.08 = 300,332.43 : x
  2. Step 2: Convert to fraction form
    554,981.25/765,874.08 = 300,332.43/x
  3. Step 3: Cross multiply
    554,981.25x = 765,874.08 × 300,332.43
  4. Step 4: Simplify right side
    554,981.25x = 230,016,823,520.41
  5. Step 5: Solve for x
    x = 230,016,823,520.41/554,981.25
  6. Step 6: Final answer
    x = 414,458.73

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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.