Home / 1,205,236.52-1,662,814.43-688,619.73

Finding the Fourth Proportional to 1,205,236.52, 1,662,814.43 and 688,619.73

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Solution

The fourth proportional to 1,205,236.52, 1,662,814.43 and 688,619.73 is: 950,059.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,236.52 : 1,662,814.43 = 688,619.73 : x
  2. Step 2: Convert to fraction form
    1,205,236.52/1,662,814.43 = 688,619.73/x
  3. Step 3: Cross multiply
    1,205,236.52x = 1,662,814.43 × 688,619.73
  4. Step 4: Simplify right side
    1,205,236.52x = 1,145,046,823,826.70
  5. Step 5: Solve for x
    x = 1,145,046,823,826.70/1,205,236.52
  6. Step 6: Final answer
    x = 950,059.85

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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.