Home / 861,156-1,292,045.04-270,180

Finding the Fourth Proportional to 861,156, 1,292,045.04 and 270,180

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Solution

The fourth proportional to 861,156, 1,292,045.04 and 270,180 is: 405,367.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,156 : 1,292,045.04 = 270,180 : x
  2. Step 2: Convert to fraction form
    861,156/1,292,045.04 = 270,180/x
  3. Step 3: Cross multiply
    861,156x = 1,292,045.04 × 270,180
  4. Step 4: Simplify right side
    861,156x = 349,084,728,907.20
  5. Step 5: Solve for x
    x = 349,084,728,907.20/861,156
  6. Step 6: Final answer
    x = 405,367.59

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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.