Home / 479,902.28-719,984.95-209,981.50

Finding the Fourth Proportional to 479,902.28, 719,984.95 and 209,981.50

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Solution

The fourth proportional to 479,902.28, 719,984.95 and 209,981.50 is: 315,029.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,902.28 : 719,984.95 = 209,981.50 : x
  2. Step 2: Convert to fraction form
    479,902.28/719,984.95 = 209,981.50/x
  3. Step 3: Cross multiply
    479,902.28x = 719,984.95 × 209,981.50
  4. Step 4: Simplify right side
    479,902.28x = 151,183,517,453.51
  5. Step 5: Solve for x
    x = 151,183,517,453.51/479,902.28
  6. Step 6: Final answer
    x = 315,029.80

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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.