Home / 486,105.40-727,991.70-236,495.80

Finding the Fourth Proportional to 486,105.40, 727,991.70 and 236,495.80

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Solution

The fourth proportional to 486,105.40, 727,991.70 and 236,495.80 is: 354,176.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,105.40 : 727,991.70 = 236,495.80 : x
  2. Step 2: Convert to fraction form
    486,105.40/727,991.70 = 236,495.80/x
  3. Step 3: Cross multiply
    486,105.40x = 727,991.70 × 236,495.80
  4. Step 4: Simplify right side
    486,105.40x = 172,166,979,484.86
  5. Step 5: Solve for x
    x = 172,166,979,484.86/486,105.40
  6. Step 6: Final answer
    x = 354,176.23

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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.