Home / 479,855.45-719,938.62-142,898.89

Finding the Fourth Proportional to 479,855.45, 719,938.62 and 142,898.89

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Solution

The fourth proportional to 479,855.45, 719,938.62 and 142,898.89 is: 214,394.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,855.45 : 719,938.62 = 142,898.89 : x
  2. Step 2: Convert to fraction form
    479,855.45/719,938.62 = 142,898.89/x
  3. Step 3: Cross multiply
    479,855.45x = 719,938.62 × 142,898.89
  4. Step 4: Simplify right side
    479,855.45x = 102,878,427,866.29
  5. Step 5: Solve for x
    x = 102,878,427,866.29/479,855.45
  6. Step 6: Final answer
    x = 214,394.62

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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.