Home / 513,001.62-769,087.31-213,707.03

Finding the Fourth Proportional to 513,001.62, 769,087.31 and 213,707.03

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Solution

The fourth proportional to 513,001.62, 769,087.31 and 213,707.03 is: 320,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,001.62 : 769,087.31 = 213,707.03 : x
  2. Step 2: Convert to fraction form
    513,001.62/769,087.31 = 213,707.03/x
  3. Step 3: Cross multiply
    513,001.62x = 769,087.31 × 213,707.03
  4. Step 4: Simplify right side
    513,001.62x = 164,359,359,916.82
  5. Step 5: Solve for x
    x = 164,359,359,916.82/513,001.62
  6. Step 6: Final answer
    x = 320,387.60

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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.