Home / 1,023.08-1,534.78-406.77

Finding the Fourth Proportional to 1,023.08, 1,534.78 and 406.77

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Solution

The fourth proportional to 1,023.08, 1,534.78 and 406.77 is: 610.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,023.08 : 1,534.78 = 406.77 : x
  2. Step 2: Convert to fraction form
    1,023.08/1,534.78 = 406.77/x
  3. Step 3: Cross multiply
    1,023.08x = 1,534.78 × 406.77
  4. Step 4: Simplify right side
    1,023.08x = 624,302.46
  5. Step 5: Solve for x
    x = 624,302.46/1,023.08
  6. Step 6: Final answer
    x = 610.22

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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.