Home / 1,125,790.80-1,684,999.80-875,115.60

Finding the Fourth Proportional to 1,125,790.80, 1,684,999.80 and 875,115.60

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Solution

The fourth proportional to 1,125,790.80, 1,684,999.80 and 875,115.60 is: 1,309,807.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,790.80 : 1,684,999.80 = 875,115.60 : x
  2. Step 2: Convert to fraction form
    1,125,790.80/1,684,999.80 = 875,115.60/x
  3. Step 3: Cross multiply
    1,125,790.80x = 1,684,999.80 × 875,115.60
  4. Step 4: Simplify right side
    1,125,790.80x = 1,474,569,610,976.88
  5. Step 5: Solve for x
    x = 1,474,569,610,976.88/1,125,790.80
  6. Step 6: Final answer
    x = 1,309,807.84

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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.