Home / 777,286.46-1,072,640.92-423,670.32

Finding the Fourth Proportional to 777,286.46, 1,072,640.92 and 423,670.32

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Solution

The fourth proportional to 777,286.46, 1,072,640.92 and 423,670.32 is: 584,657.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,286.46 : 1,072,640.92 = 423,670.32 : x
  2. Step 2: Convert to fraction form
    777,286.46/1,072,640.92 = 423,670.32/x
  3. Step 3: Cross multiply
    777,286.46x = 1,072,640.92 × 423,670.32
  4. Step 4: Simplify right side
    777,286.46x = 454,446,121,821.49
  5. Step 5: Solve for x
    x = 454,446,121,821.49/777,286.46
  6. Step 6: Final answer
    x = 584,657.20

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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.