Home / 479,530.50-719,289.49-137,982.84

Finding the Fourth Proportional to 479,530.50, 719,289.49 and 137,982.84

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Solution

The fourth proportional to 479,530.50, 719,289.49 and 137,982.84 is: 206,972.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,530.50 : 719,289.49 = 137,982.84 : x
  2. Step 2: Convert to fraction form
    479,530.50/719,289.49 = 137,982.84/x
  3. Step 3: Cross multiply
    479,530.50x = 719,289.49 × 137,982.84
  4. Step 4: Simplify right side
    479,530.50x = 99,249,608,262.86
  5. Step 5: Solve for x
    x = 99,249,608,262.86/479,530.50
  6. Step 6: Final answer
    x = 206,972.46

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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.