Home / 778,352.45-1,167,865.83-418,102.94

Finding the Fourth Proportional to 778,352.45, 1,167,865.83 and 418,102.94

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Solution

The fourth proportional to 778,352.45, 1,167,865.83 and 418,102.94 is: 627,335.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,352.45 : 1,167,865.83 = 418,102.94 : x
  2. Step 2: Convert to fraction form
    778,352.45/1,167,865.83 = 418,102.94/x
  3. Step 3: Cross multiply
    778,352.45x = 1,167,865.83 × 418,102.94
  4. Step 4: Simplify right side
    778,352.45x = 488,288,137,048.54
  5. Step 5: Solve for x
    x = 488,288,137,048.54/778,352.45
  6. Step 6: Final answer
    x = 627,335.52

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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.