Home / 742,637.88-1,112,958.99-405,172.85

Finding the Fourth Proportional to 742,637.88, 1,112,958.99 and 405,172.85

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Solution

The fourth proportional to 742,637.88, 1,112,958.99 and 405,172.85 is: 607,214.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,637.88 : 1,112,958.99 = 405,172.85 : x
  2. Step 2: Convert to fraction form
    742,637.88/1,112,958.99 = 405,172.85/x
  3. Step 3: Cross multiply
    742,637.88x = 1,112,958.99 × 405,172.85
  4. Step 4: Simplify right side
    742,637.88x = 450,940,760,346.63
  5. Step 5: Solve for x
    x = 450,940,760,346.63/742,637.88
  6. Step 6: Final answer
    x = 607,214.87

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1.5x scale

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.