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Finding the Fourth Proportional to 554,917.84, 765,788 and 300,271.68

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Solution

The fourth proportional to 554,917.84, 765,788 and 300,271.68 is: 414,375.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,917.84 : 765,788 = 300,271.68 : x
  2. Step 2: Convert to fraction form
    554,917.84/765,788 = 300,271.68/x
  3. Step 3: Cross multiply
    554,917.84x = 765,788 × 300,271.68
  4. Step 4: Simplify right side
    554,917.84x = 229,944,449,283.84
  5. Step 5: Solve for x
    x = 229,944,449,283.84/554,917.84
  6. Step 6: Final answer
    x = 414,375.67

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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.