Home / 459,245.09-688,880.60-126,821.09

Finding the Fourth Proportional to 459,245.09, 688,880.60 and 126,821.09

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Solution

The fourth proportional to 459,245.09, 688,880.60 and 126,821.09 is: 190,235.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,245.09 : 688,880.60 = 126,821.09 : x
  2. Step 2: Convert to fraction form
    459,245.09/688,880.60 = 126,821.09/x
  3. Step 3: Cross multiply
    459,245.09x = 688,880.60 × 126,821.09
  4. Step 4: Simplify right side
    459,245.09x = 87,364,584,493.35
  5. Step 5: Solve for x
    x = 87,364,584,493.35/459,245.09
  6. Step 6: Final answer
    x = 190,235.21

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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.