Home / 776,640.66-1,164,975.62-215,689.74

Finding the Fourth Proportional to 776,640.66, 1,164,975.62 and 215,689.74

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Solution

The fourth proportional to 776,640.66, 1,164,975.62 and 215,689.74 is: 323,538.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,640.66 : 1,164,975.62 = 215,689.74 : x
  2. Step 2: Convert to fraction form
    776,640.66/1,164,975.62 = 215,689.74/x
  3. Step 3: Cross multiply
    776,640.66x = 1,164,975.62 × 215,689.74
  4. Step 4: Simplify right side
    776,640.66x = 251,273,283,137.03
  5. Step 5: Solve for x
    x = 251,273,283,137.03/776,640.66
  6. Step 6: Final answer
    x = 323,538.67

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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.