Home / 787,405.60-1,086,619.44-429,709.60

Finding the Fourth Proportional to 787,405.60, 1,086,619.44 and 429,709.60

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Solution

The fourth proportional to 787,405.60, 1,086,619.44 and 429,709.60 is: 592,999.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,405.60 : 1,086,619.44 = 429,709.60 : x
  2. Step 2: Convert to fraction form
    787,405.60/1,086,619.44 = 429,709.60/x
  3. Step 3: Cross multiply
    787,405.60x = 1,086,619.44 × 429,709.60
  4. Step 4: Simplify right side
    787,405.60x = 466,930,804,914.62
  5. Step 5: Solve for x
    x = 466,930,804,914.62/787,405.60
  6. Step 6: Final answer
    x = 592,999.09

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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.