Home / 911,625.40-1,367,022.57-378,828.46

Finding the Fourth Proportional to 911,625.40, 1,367,022.57 and 378,828.46

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Solution

The fourth proportional to 911,625.40, 1,367,022.57 and 378,828.46 is: 568,070.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,625.40 : 1,367,022.57 = 378,828.46 : x
  2. Step 2: Convert to fraction form
    911,625.40/1,367,022.57 = 378,828.46/x
  3. Step 3: Cross multiply
    911,625.40x = 1,367,022.57 × 378,828.46
  4. Step 4: Simplify right side
    911,625.40x = 517,867,054,978.34
  5. Step 5: Solve for x
    x = 517,867,054,978.34/911,625.40
  6. Step 6: Final answer
    x = 568,070.02

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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.