Home / 862,561.80-1,293,375.60-388,692.36

Finding the Fourth Proportional to 862,561.80, 1,293,375.60 and 388,692.36

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Solution

The fourth proportional to 862,561.80, 1,293,375.60 and 388,692.36 is: 582,828.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,561.80 : 1,293,375.60 = 388,692.36 : x
  2. Step 2: Convert to fraction form
    862,561.80/1,293,375.60 = 388,692.36/x
  3. Step 3: Cross multiply
    862,561.80x = 1,293,375.60 × 388,692.36
  4. Step 4: Simplify right side
    862,561.80x = 502,725,214,330.42
  5. Step 5: Solve for x
    x = 502,725,214,330.42/862,561.80
  6. Step 6: Final answer
    x = 582,828.05

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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.