Home / 1,391,059.80-2,091,255.30-1,185,773.40

Finding the Fourth Proportional to 1,391,059.80, 2,091,255.30 and 1,185,773.40

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Solution

The fourth proportional to 1,391,059.80, 2,091,255.30 and 1,185,773.40 is: 1,782,637.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,059.80 : 2,091,255.30 = 1,185,773.40 : x
  2. Step 2: Convert to fraction form
    1,391,059.80/2,091,255.30 = 1,185,773.40/x
  3. Step 3: Cross multiply
    1,391,059.80x = 2,091,255.30 × 1,185,773.40
  4. Step 4: Simplify right side
    1,391,059.80x = 2,479,754,907,349.02
  5. Step 5: Solve for x
    x = 2,479,754,907,349.02/1,391,059.80
  6. Step 6: Final answer
    x = 1,782,637.17

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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.