Home / 538,949.29-743,717.91-309,543.93

Finding the Fourth Proportional to 538,949.29, 743,717.91 and 309,543.93

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Solution

The fourth proportional to 538,949.29, 743,717.91 and 309,543.93 is: 427,152.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,949.29 : 743,717.91 = 309,543.93 : x
  2. Step 2: Convert to fraction form
    538,949.29/743,717.91 = 309,543.93/x
  3. Step 3: Cross multiply
    538,949.29x = 743,717.91 × 309,543.93
  4. Step 4: Simplify right side
    538,949.29x = 230,213,364,672.79
  5. Step 5: Solve for x
    x = 230,213,364,672.79/538,949.29
  6. Step 6: Final answer
    x = 427,152.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.