Home / 778,350.45-1,167,862.83-418,100.94

Finding the Fourth Proportional to 778,350.45, 1,167,862.83 and 418,100.94

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Solution

The fourth proportional to 778,350.45, 1,167,862.83 and 418,100.94 is: 627,332.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,350.45 : 1,167,862.83 = 418,100.94 : x
  2. Step 2: Convert to fraction form
    778,350.45/1,167,862.83 = 418,100.94/x
  3. Step 3: Cross multiply
    778,350.45x = 1,167,862.83 × 418,100.94
  4. Step 4: Simplify right side
    778,350.45x = 488,284,544,923.56
  5. Step 5: Solve for x
    x = 488,284,544,923.56/778,350.45
  6. Step 6: Final answer
    x = 627,332.52

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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.