Home / 1,069,748.70-1,476,059.67-687,687.90

Finding the Fourth Proportional to 1,069,748.70, 1,476,059.67 and 687,687.90

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Solution

The fourth proportional to 1,069,748.70, 1,476,059.67 and 687,687.90 is: 948,884.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,748.70 : 1,476,059.67 = 687,687.90 : x
  2. Step 2: Convert to fraction form
    1,069,748.70/1,476,059.67 = 687,687.90/x
  3. Step 3: Cross multiply
    1,069,748.70x = 1,476,059.67 × 687,687.90
  4. Step 4: Simplify right side
    1,069,748.70x = 1,015,068,374,736.99
  5. Step 5: Solve for x
    x = 1,015,068,374,736.99/1,069,748.70
  6. Step 6: Final answer
    x = 948,884.89

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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.