Home / 423,217.41-634,760.49-123,617.53

Finding the Fourth Proportional to 423,217.41, 634,760.49 and 123,617.53

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Solution

The fourth proportional to 423,217.41, 634,760.49 and 123,617.53 is: 185,407.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,217.41 : 634,760.49 = 123,617.53 : x
  2. Step 2: Convert to fraction form
    423,217.41/634,760.49 = 123,617.53/x
  3. Step 3: Cross multiply
    423,217.41x = 634,760.49 × 123,617.53
  4. Step 4: Simplify right side
    423,217.41x = 78,467,523,915.39
  5. Step 5: Solve for x
    x = 78,467,523,915.39/423,217.41
  6. Step 6: Final answer
    x = 185,407.13

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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.