Home / 1,205,296.58-1,662,897.30-688,679.84

Finding the Fourth Proportional to 1,205,296.58, 1,662,897.30 and 688,679.84

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Solution

The fourth proportional to 1,205,296.58, 1,662,897.30 and 688,679.84 is: 950,142.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,296.58 : 1,662,897.30 = 688,679.84 : x
  2. Step 2: Convert to fraction form
    1,205,296.58/1,662,897.30 = 688,679.84/x
  3. Step 3: Cross multiply
    1,205,296.58x = 1,662,897.30 × 688,679.84
  4. Step 4: Simplify right side
    1,205,296.58x = 1,145,203,846,500.43
  5. Step 5: Solve for x
    x = 1,145,203,846,500.43/1,205,296.58
  6. Step 6: Final answer
    x = 950,142.78

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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.