Home / 1,221,727.52-1,686,186.24-678,037.94

Finding the Fourth Proportional to 1,221,727.52, 1,686,186.24 and 678,037.94

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Solution

The fourth proportional to 1,221,727.52, 1,686,186.24 and 678,037.94 is: 935,804.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,727.52 : 1,686,186.24 = 678,037.94 : x
  2. Step 2: Convert to fraction form
    1,221,727.52/1,686,186.24 = 678,037.94/x
  3. Step 3: Cross multiply
    1,221,727.52x = 1,686,186.24 × 678,037.94
  4. Step 4: Simplify right side
    1,221,727.52x = 1,143,298,244,625.95
  5. Step 5: Solve for x
    x = 1,143,298,244,625.95/1,221,727.52
  6. Step 6: Final answer
    x = 935,804.61

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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.