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Finding the Fourth Proportional to 554,996.22, 765,894.78 and 300,347.46

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Solution

The fourth proportional to 554,996.22, 765,894.78 and 300,347.46 is: 414,479.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,996.22 : 765,894.78 = 300,347.46 : x
  2. Step 2: Convert to fraction form
    554,996.22/765,894.78 = 300,347.46/x
  3. Step 3: Cross multiply
    554,996.22x = 765,894.78 × 300,347.46
  4. Step 4: Simplify right side
    554,996.22x = 230,034,551,800.26
  5. Step 5: Solve for x
    x = 230,034,551,800.26/554,996.22
  6. Step 6: Final answer
    x = 414,479.49

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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.