Home / 479,679.74-719,394.20-142,629.62

Finding the Fourth Proportional to 479,679.74, 719,394.20 and 142,629.62

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Solution

The fourth proportional to 479,679.74, 719,394.20 and 142,629.62 is: 213,907.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,679.74 : 719,394.20 = 142,629.62 : x
  2. Step 2: Convert to fraction form
    479,679.74/719,394.20 = 142,629.62/x
  3. Step 3: Cross multiply
    479,679.74x = 719,394.20 × 142,629.62
  4. Step 4: Simplify right side
    479,679.74x = 102,606,921,376.20
  5. Step 5: Solve for x
    x = 102,606,921,376.20/479,679.74
  6. Step 6: Final answer
    x = 213,907.14

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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.