Home / 873,915.46-1,311,188.88-305,380.50

Finding the Fourth Proportional to 873,915.46, 1,311,188.88 and 305,380.50

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Solution

The fourth proportional to 873,915.46, 1,311,188.88 and 305,380.50 is: 458,181.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,915.46 : 1,311,188.88 = 305,380.50 : x
  2. Step 2: Convert to fraction form
    873,915.46/1,311,188.88 = 305,380.50/x
  3. Step 3: Cross multiply
    873,915.46x = 1,311,188.88 × 305,380.50
  4. Step 4: Simplify right side
    873,915.46x = 400,411,515,768.84
  5. Step 5: Solve for x
    x = 400,411,515,768.84/873,915.46
  6. Step 6: Final answer
    x = 458,181.06

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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.