Home / 423,236.21-634,841.99-123,723.82

Finding the Fourth Proportional to 423,236.21, 634,841.99 and 123,723.82

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Solution

The fourth proportional to 423,236.21, 634,841.99 and 123,723.82 is: 185,582.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,236.21 : 634,841.99 = 123,723.82 : x
  2. Step 2: Convert to fraction form
    423,236.21/634,841.99 = 123,723.82/x
  3. Step 3: Cross multiply
    423,236.21x = 634,841.99 × 123,723.82
  4. Step 4: Simplify right side
    423,236.21x = 78,545,076,099.20
  5. Step 5: Solve for x
    x = 78,545,076,099.20/423,236.21
  6. Step 6: Final answer
    x = 185,582.13

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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.