Home / 479,893.85-719,972.27-209,973.05

Finding the Fourth Proportional to 479,893.85, 719,972.27 and 209,973.05

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Solution

The fourth proportional to 479,893.85, 719,972.27 and 209,973.05 is: 315,017.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,893.85 : 719,972.27 = 209,973.05 : x
  2. Step 2: Convert to fraction form
    479,893.85/719,972.27 = 209,973.05/x
  3. Step 3: Cross multiply
    479,893.85x = 719,972.27 × 209,973.05
  4. Step 4: Simplify right side
    479,893.85x = 151,174,777,515.83
  5. Step 5: Solve for x
    x = 151,174,777,515.83/479,893.85
  6. Step 6: Final answer
    x = 315,017.12

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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.