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Finding the Fourth Proportional to 554,983.84, 765,879.66 and 300,334.96

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Solution

The fourth proportional to 554,983.84, 765,879.66 and 300,334.96 is: 414,463.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,983.84 : 765,879.66 = 300,334.96 : x
  2. Step 2: Convert to fraction form
    554,983.84/765,879.66 = 300,334.96/x
  3. Step 3: Cross multiply
    554,983.84x = 765,879.66 × 300,334.96
  4. Step 4: Simplify right side
    554,983.84x = 230,020,437,050.91
  5. Step 5: Solve for x
    x = 230,020,437,050.91/554,983.84
  6. Step 6: Final answer
    x = 414,463.31

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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.