Home / 1,066,431.05-1,471,692.35-636,748.73

Finding the Fourth Proportional to 1,066,431.05, 1,471,692.35 and 636,748.73

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Solution

The fourth proportional to 1,066,431.05, 1,471,692.35 and 636,748.73 is: 878,723.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066,431.05 : 1,471,692.35 = 636,748.73 : x
  2. Step 2: Convert to fraction form
    1,066,431.05/1,471,692.35 = 636,748.73/x
  3. Step 3: Cross multiply
    1,066,431.05x = 1,471,692.35 × 636,748.73
  4. Step 4: Simplify right side
    1,066,431.05x = 937,098,234,813.22
  5. Step 5: Solve for x
    x = 937,098,234,813.22/1,066,431.05
  6. Step 6: Final answer
    x = 878,723.70

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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.