Home / 774,940.82-1,162,551.76-319,279.02

Finding the Fourth Proportional to 774,940.82, 1,162,551.76 and 319,279.02

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Solution

The fourth proportional to 774,940.82, 1,162,551.76 and 319,279.02 is: 478,976.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,940.82 : 1,162,551.76 = 319,279.02 : x
  2. Step 2: Convert to fraction form
    774,940.82/1,162,551.76 = 319,279.02/x
  3. Step 3: Cross multiply
    774,940.82x = 1,162,551.76 × 319,279.02
  4. Step 4: Simplify right side
    774,940.82x = 371,178,382,671.61
  5. Step 5: Solve for x
    x = 371,178,382,671.61/774,940.82
  6. Step 6: Final answer
    x = 478,976.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.