Home / 723,579.12-1,085,377.86-274,179.24

Finding the Fourth Proportional to 723,579.12, 1,085,377.86 and 274,179.24

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Solution

The fourth proportional to 723,579.12, 1,085,377.86 and 274,179.24 is: 411,272.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,579.12 : 1,085,377.86 = 274,179.24 : x
  2. Step 2: Convert to fraction form
    723,579.12/1,085,377.86 = 274,179.24/x
  3. Step 3: Cross multiply
    723,579.12x = 1,085,377.86 × 274,179.24
  4. Step 4: Simplify right side
    723,579.12x = 297,588,076,767.63
  5. Step 5: Solve for x
    x = 297,588,076,767.63/723,579.12
  6. Step 6: Final answer
    x = 411,272.34

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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.