Home / 763,742.04-1,145,174.03-314,772.81

Finding the Fourth Proportional to 763,742.04, 1,145,174.03 and 314,772.81

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Solution

The fourth proportional to 763,742.04, 1,145,174.03 and 314,772.81 is: 471,978.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,742.04 : 1,145,174.03 = 314,772.81 : x
  2. Step 2: Convert to fraction form
    763,742.04/1,145,174.03 = 314,772.81/x
  3. Step 3: Cross multiply
    763,742.04x = 1,145,174.03 × 314,772.81
  4. Step 4: Simplify right side
    763,742.04x = 360,469,647,362.12
  5. Step 5: Solve for x
    x = 360,469,647,362.12/763,742.04
  6. Step 6: Final answer
    x = 471,978.27

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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.