Home / 1,399,748.40-2,098,067.40-769,114.80

Finding the Fourth Proportional to 1,399,748.40, 2,098,067.40 and 769,114.80

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Solution

The fourth proportional to 1,399,748.40, 2,098,067.40 and 769,114.80 is: 1,152,817.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,748.40 : 2,098,067.40 = 769,114.80 : x
  2. Step 2: Convert to fraction form
    1,399,748.40/2,098,067.40 = 769,114.80/x
  3. Step 3: Cross multiply
    1,399,748.40x = 2,098,067.40 × 769,114.80
  4. Step 4: Simplify right side
    1,399,748.40x = 1,613,654,688,737.52
  5. Step 5: Solve for x
    x = 1,613,654,688,737.52/1,399,748.40
  6. Step 6: Final answer
    x = 1,152,817.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.