Home / 738,486.60-1,019,112.96-428,449.44

Finding the Fourth Proportional to 738,486.60, 1,019,112.96 and 428,449.44

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Solution

The fourth proportional to 738,486.60, 1,019,112.96 and 428,449.44 is: 591,261.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,486.60 : 1,019,112.96 = 428,449.44 : x
  2. Step 2: Convert to fraction form
    738,486.60/1,019,112.96 = 428,449.44/x
  3. Step 3: Cross multiply
    738,486.60x = 1,019,112.96 × 428,449.44
  4. Step 4: Simplify right side
    738,486.60x = 436,638,377,008.74
  5. Step 5: Solve for x
    x = 436,638,377,008.74/738,486.60
  6. Step 6: Final answer
    x = 591,261.07

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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.