Home / 765,190.08-1,147,891.44-338,692.20

Finding the Fourth Proportional to 765,190.08, 1,147,891.44 and 338,692.20

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Solution

The fourth proportional to 765,190.08, 1,147,891.44 and 338,692.20 is: 508,085.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,190.08 : 1,147,891.44 = 338,692.20 : x
  2. Step 2: Convert to fraction form
    765,190.08/1,147,891.44 = 338,692.20/x
  3. Step 3: Cross multiply
    765,190.08x = 1,147,891.44 × 338,692.20
  4. Step 4: Simplify right side
    765,190.08x = 388,781,877,174.77
  5. Step 5: Solve for x
    x = 388,781,877,174.77/765,190.08
  6. Step 6: Final answer
    x = 508,085.36

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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.