Home / 800,646.12-1,201,100.40-379,692.36

Finding the Fourth Proportional to 800,646.12, 1,201,100.40 and 379,692.36

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Solution

The fourth proportional to 800,646.12, 1,201,100.40 and 379,692.36 is: 569,600.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,646.12 : 1,201,100.40 = 379,692.36 : x
  2. Step 2: Convert to fraction form
    800,646.12/1,201,100.40 = 379,692.36/x
  3. Step 3: Cross multiply
    800,646.12x = 1,201,100.40 × 379,692.36
  4. Step 4: Simplify right side
    800,646.12x = 456,048,645,472.94
  5. Step 5: Solve for x
    x = 456,048,645,472.94/800,646.12
  6. Step 6: Final answer
    x = 569,600.77

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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.