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Finding the Fourth Proportional to 554,984.84, 765,881.04 and 300,335.96

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Solution

The fourth proportional to 554,984.84, 765,881.04 and 300,335.96 is: 414,464.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,984.84 : 765,881.04 = 300,335.96 : x
  2. Step 2: Convert to fraction form
    554,984.84/765,881.04 = 300,335.96/x
  3. Step 3: Cross multiply
    554,984.84x = 765,881.04 × 300,335.96
  4. Step 4: Simplify right side
    554,984.84x = 230,021,617,394.20
  5. Step 5: Solve for x
    x = 230,021,617,394.20/554,984.84
  6. Step 6: Final answer
    x = 414,464.69

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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.