Home / 1,185,750.80-1,778,360.00-545,439.57

Finding the Fourth Proportional to 1,185,750.80, 1,778,360.00 and 545,439.57

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Solution

The fourth proportional to 1,185,750.80, 1,778,360.00 and 545,439.57 is: 818,036.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,750.80 : 1,778,360.00 = 545,439.57 : x
  2. Step 2: Convert to fraction form
    1,185,750.80/1,778,360.00 = 545,439.57/x
  3. Step 3: Cross multiply
    1,185,750.80x = 1,778,360.00 × 545,439.57
  4. Step 4: Simplify right side
    1,185,750.80x = 969,987,910,978.00
  5. Step 5: Solve for x
    x = 969,987,910,978.00/1,185,750.80
  6. Step 6: Final answer
    x = 818,036.90

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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.