Home / 1,127,813.45-1,691,819.63-318,204.94

Finding the Fourth Proportional to 1,127,813.45, 1,691,819.63 and 318,204.94

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Solution

The fourth proportional to 1,127,813.45, 1,691,819.63 and 318,204.94 is: 477,335.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,813.45 : 1,691,819.63 = 318,204.94 : x
  2. Step 2: Convert to fraction form
    1,127,813.45/1,691,819.63 = 318,204.94/x
  3. Step 3: Cross multiply
    1,127,813.45x = 1,691,819.63 × 318,204.94
  4. Step 4: Simplify right side
    1,127,813.45x = 538,345,355,395.87
  5. Step 5: Solve for x
    x = 538,345,355,395.87/1,127,813.45
  6. Step 6: Final answer
    x = 477,335.46

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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.