Home / 860,829.54-1,291,233.78-387,180.42

Finding the Fourth Proportional to 860,829.54, 1,291,233.78 and 387,180.42

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Solution

The fourth proportional to 860,829.54, 1,291,233.78 and 387,180.42 is: 580,765.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,829.54 : 1,291,233.78 = 387,180.42 : x
  2. Step 2: Convert to fraction form
    860,829.54/1,291,233.78 = 387,180.42/x
  3. Step 3: Cross multiply
    860,829.54x = 1,291,233.78 × 387,180.42
  4. Step 4: Simplify right side
    860,829.54x = 499,940,437,258.59
  5. Step 5: Solve for x
    x = 499,940,437,258.59/860,829.54
  6. Step 6: Final answer
    x = 580,765.89

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1.5x scale

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.