Home / 723,543.10-1,085,323.79-274,143.29

Finding the Fourth Proportional to 723,543.10, 1,085,323.79 and 274,143.29

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Solution

The fourth proportional to 723,543.10, 1,085,323.79 and 274,143.29 is: 411,218.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,543.10 : 1,085,323.79 = 274,143.29 : x
  2. Step 2: Convert to fraction form
    723,543.10/1,085,323.79 = 274,143.29/x
  3. Step 3: Cross multiply
    723,543.10x = 1,085,323.79 × 274,143.29
  4. Step 4: Simplify right side
    723,543.10x = 297,534,229,764.61
  5. Step 5: Solve for x
    x = 297,534,229,764.61/723,543.10
  6. Step 6: Final answer
    x = 411,218.39

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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.