Home / 526,620.68-788,093.94-430,742.60

Finding the Fourth Proportional to 526,620.68, 788,093.94 and 430,742.60

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Solution

The fourth proportional to 526,620.68, 788,093.94 and 430,742.60 is: 644,611.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,620.68 : 788,093.94 = 430,742.60 : x
  2. Step 2: Convert to fraction form
    526,620.68/788,093.94 = 430,742.60/x
  3. Step 3: Cross multiply
    526,620.68x = 788,093.94 × 430,742.60
  4. Step 4: Simplify right side
    526,620.68x = 339,465,632,759.84
  5. Step 5: Solve for x
    x = 339,465,632,759.84/526,620.68
  6. Step 6: Final answer
    x = 644,611.28

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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.