Home / 481,920.08-722,915.55-126,931.50

Finding the Fourth Proportional to 481,920.08, 722,915.55 and 126,931.50

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Solution

The fourth proportional to 481,920.08, 722,915.55 and 126,931.50 is: 190,406.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,920.08 : 722,915.55 = 126,931.50 : x
  2. Step 2: Convert to fraction form
    481,920.08/722,915.55 = 126,931.50/x
  3. Step 3: Cross multiply
    481,920.08x = 722,915.55 × 126,931.50
  4. Step 4: Simplify right side
    481,920.08x = 91,760,755,134.83
  5. Step 5: Solve for x
    x = 91,760,755,134.83/481,920.08
  6. Step 6: Final answer
    x = 190,406.58

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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.