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Finding the Fourth Proportional to 554,976.75, 765,867.87 and 300,327.93

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Solution

The fourth proportional to 554,976.75, 765,867.87 and 300,327.93 is: 414,452.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,976.75 : 765,867.87 = 300,327.93 : x
  2. Step 2: Convert to fraction form
    554,976.75/765,867.87 = 300,327.93/x
  3. Step 3: Cross multiply
    554,976.75x = 765,867.87 × 300,327.93
  4. Step 4: Simplify right side
    554,976.75x = 230,011,512,050.61
  5. Step 5: Solve for x
    x = 230,011,512,050.61/554,976.75
  6. Step 6: Final answer
    x = 414,452.52

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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.