Home / 870,813.88-1,304,232.11-415,725.23

Finding the Fourth Proportional to 870,813.88, 1,304,232.11 and 415,725.23

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Solution

The fourth proportional to 870,813.88, 1,304,232.11 and 415,725.23 is: 622,638.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,813.88 : 1,304,232.11 = 415,725.23 : x
  2. Step 2: Convert to fraction form
    870,813.88/1,304,232.11 = 415,725.23/x
  3. Step 3: Cross multiply
    870,813.88x = 1,304,232.11 × 415,725.23
  4. Step 4: Simplify right side
    870,813.88x = 542,202,193,903.14
  5. Step 5: Solve for x
    x = 542,202,193,903.14/870,813.88
  6. Step 6: Final answer
    x = 622,638.44

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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.