Home / 860,616.09-1,290,966.26-328,037.85

Finding the Fourth Proportional to 860,616.09, 1,290,966.26 and 328,037.85

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Solution

The fourth proportional to 860,616.09, 1,290,966.26 and 328,037.85 is: 492,072.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,616.09 : 1,290,966.26 = 328,037.85 : x
  2. Step 2: Convert to fraction form
    860,616.09/1,290,966.26 = 328,037.85/x
  3. Step 3: Cross multiply
    860,616.09x = 1,290,966.26 × 328,037.85
  4. Step 4: Simplify right side
    860,616.09x = 423,485,794,712.75
  5. Step 5: Solve for x
    x = 423,485,794,712.75/860,616.09
  6. Step 6: Final answer
    x = 492,072.83

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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.