Home / 778,958.82-1,074,966.41-421,262.82

Finding the Fourth Proportional to 778,958.82, 1,074,966.41 and 421,262.82

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Solution

The fourth proportional to 778,958.82, 1,074,966.41 and 421,262.82 is: 581,344.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,958.82 : 1,074,966.41 = 421,262.82 : x
  2. Step 2: Convert to fraction form
    778,958.82/1,074,966.41 = 421,262.82/x
  3. Step 3: Cross multiply
    778,958.82x = 1,074,966.41 × 421,262.82
  4. Step 4: Simplify right side
    778,958.82x = 452,843,379,175.56
  5. Step 5: Solve for x
    x = 452,843,379,175.56/778,958.82
  6. Step 6: Final answer
    x = 581,344.44

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1.5x scale

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.