Home / 742,637.37-1,112,958.24-405,172.34

Finding the Fourth Proportional to 742,637.37, 1,112,958.24 and 405,172.34

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Solution

The fourth proportional to 742,637.37, 1,112,958.24 and 405,172.34 is: 607,214.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,637.37 : 1,112,958.24 = 405,172.34 : x
  2. Step 2: Convert to fraction form
    742,637.37/1,112,958.24 = 405,172.34/x
  3. Step 3: Cross multiply
    742,637.37x = 1,112,958.24 × 405,172.34
  4. Step 4: Simplify right side
    742,637.37x = 450,939,894,423.08
  5. Step 5: Solve for x
    x = 450,939,894,423.08/742,637.37
  6. Step 6: Final answer
    x = 607,214.12

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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.