Home / 491,710.94-678,582.02-273,919.35

Finding the Fourth Proportional to 491,710.94, 678,582.02 and 273,919.35

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Solution

The fourth proportional to 491,710.94, 678,582.02 and 273,919.35 is: 378,020.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,710.94 : 678,582.02 = 273,919.35 : x
  2. Step 2: Convert to fraction form
    491,710.94/678,582.02 = 273,919.35/x
  3. Step 3: Cross multiply
    491,710.94x = 678,582.02 × 273,919.35
  4. Step 4: Simplify right side
    491,710.94x = 185,876,744,470.49
  5. Step 5: Solve for x
    x = 185,876,744,470.49/491,710.94
  6. Step 6: Final answer
    x = 378,020.36

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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.