Home / 777,454.29-1,072,843.54-428,583.44

Finding the Fourth Proportional to 777,454.29, 1,072,843.54 and 428,583.44

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Solution

The fourth proportional to 777,454.29, 1,072,843.54 and 428,583.44 is: 591,421.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,454.29 : 1,072,843.54 = 428,583.44 : x
  2. Step 2: Convert to fraction form
    777,454.29/1,072,843.54 = 428,583.44/x
  3. Step 3: Cross multiply
    777,454.29x = 1,072,843.54 × 428,583.44
  4. Step 4: Simplify right side
    777,454.29x = 459,802,974,954.98
  5. Step 5: Solve for x
    x = 459,802,974,954.98/777,454.29
  6. Step 6: Final answer
    x = 591,421.23

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1.5x scale

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.