Home / 775,609.79-1,163,415.03-243,172.34

Finding the Fourth Proportional to 775,609.79, 1,163,415.03 and 243,172.34

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Solution

The fourth proportional to 775,609.79, 1,163,415.03 and 243,172.34 is: 364,758.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,609.79 : 1,163,415.03 = 243,172.34 : x
  2. Step 2: Convert to fraction form
    775,609.79/1,163,415.03 = 243,172.34/x
  3. Step 3: Cross multiply
    775,609.79x = 1,163,415.03 × 243,172.34
  4. Step 4: Simplify right side
    775,609.79x = 282,910,349,419.20
  5. Step 5: Solve for x
    x = 282,910,349,419.20/775,609.79
  6. Step 6: Final answer
    x = 364,758.61

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Double scale
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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.