Home / 763,839.11-1,054,100.99-419,702.92

Finding the Fourth Proportional to 763,839.11, 1,054,100.99 and 419,702.92

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Solution

The fourth proportional to 763,839.11, 1,054,100.99 and 419,702.92 is: 579,191.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,839.11 : 1,054,100.99 = 419,702.92 : x
  2. Step 2: Convert to fraction form
    763,839.11/1,054,100.99 = 419,702.92/x
  3. Step 3: Cross multiply
    763,839.11x = 1,054,100.99 × 419,702.92
  4. Step 4: Simplify right side
    763,839.11x = 442,409,261,891.90
  5. Step 5: Solve for x
    x = 442,409,261,891.90/763,839.11
  6. Step 6: Final answer
    x = 579,191.68

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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.