Home / 777,453.29-1,072,842.16-428,582.44

Finding the Fourth Proportional to 777,453.29, 1,072,842.16 and 428,582.44

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Solution

The fourth proportional to 777,453.29, 1,072,842.16 and 428,582.44 is: 591,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,453.29 : 1,072,842.16 = 428,582.44 : x
  2. Step 2: Convert to fraction form
    777,453.29/1,072,842.16 = 428,582.44/x
  3. Step 3: Cross multiply
    777,453.29x = 1,072,842.16 × 428,582.44
  4. Step 4: Simplify right side
    777,453.29x = 459,801,310,667.67
  5. Step 5: Solve for x
    x = 459,801,310,667.67/777,453.29
  6. Step 6: Final answer
    x = 591,419.85

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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.