Home / 860,759.73-1,187,992.58-498,121.11

Finding the Fourth Proportional to 860,759.73, 1,187,992.58 and 498,121.11

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Solution

The fourth proportional to 860,759.73, 1,187,992.58 and 498,121.11 is: 687,490.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,759.73 : 1,187,992.58 = 498,121.11 : x
  2. Step 2: Convert to fraction form
    860,759.73/1,187,992.58 = 498,121.11/x
  3. Step 3: Cross multiply
    860,759.73x = 1,187,992.58 × 498,121.11
  4. Step 4: Simplify right side
    860,759.73x = 591,764,180,130.76
  5. Step 5: Solve for x
    x = 591,764,180,130.76/860,759.73
  6. Step 6: Final answer
    x = 687,490.55

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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.