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Finding the Fourth Proportional to 554,999.46, 765,901.65 and 300,350.66

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Solution

The fourth proportional to 554,999.46, 765,901.65 and 300,350.66 is: 414,485.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,999.46 : 765,901.65 = 300,350.66 : x
  2. Step 2: Convert to fraction form
    554,999.46/765,901.65 = 300,350.66/x
  3. Step 3: Cross multiply
    554,999.46x = 765,901.65 × 300,350.66
  4. Step 4: Simplify right side
    554,999.46x = 230,039,066,072.59
  5. Step 5: Solve for x
    x = 230,039,066,072.59/554,999.46
  6. Step 6: Final answer
    x = 414,485.21

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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.