Home / 509,423.41-703,008.10-279,984.60

Finding the Fourth Proportional to 509,423.41, 703,008.10 and 279,984.60

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Solution

The fourth proportional to 509,423.41, 703,008.10 and 279,984.60 is: 386,380.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,423.41 : 703,008.10 = 279,984.60 : x
  2. Step 2: Convert to fraction form
    509,423.41/703,008.10 = 279,984.60/x
  3. Step 3: Cross multiply
    509,423.41x = 703,008.10 × 279,984.60
  4. Step 4: Simplify right side
    509,423.41x = 196,831,440,450.33
  5. Step 5: Solve for x
    x = 196,831,440,450.33/509,423.41
  6. Step 6: Final answer
    x = 386,380.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.