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Finding the Fourth Proportional to 554,878.82, 765,754.49 and 313,169.76

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Solution

The fourth proportional to 554,878.82, 765,754.49 and 313,169.76 is: 432,186.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,878.82 : 765,754.49 = 313,169.76 : x
  2. Step 2: Convert to fraction form
    554,878.82/765,754.49 = 313,169.76/x
  3. Step 3: Cross multiply
    554,878.82x = 765,754.49 × 313,169.76
  4. Step 4: Simplify right side
    554,878.82x = 239,811,150,635.15
  5. Step 5: Solve for x
    x = 239,811,150,635.15/554,878.82
  6. Step 6: Final answer
    x = 432,186.53

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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.