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Finding the Fourth Proportional to 554,953.62, 765,837.90 and 300,304.74

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Solution

The fourth proportional to 554,953.62, 765,837.90 and 300,304.74 is: 414,421.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,953.62 : 765,837.90 = 300,304.74 : x
  2. Step 2: Convert to fraction form
    554,953.62/765,837.90 = 300,304.74/x
  3. Step 3: Cross multiply
    554,953.62x = 765,837.90 × 300,304.74
  4. Step 4: Simplify right side
    554,953.62x = 229,984,751,441.65
  5. Step 5: Solve for x
    x = 229,984,751,441.65/554,953.62
  6. Step 6: Final answer
    x = 414,421.57

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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.