Home / 1,022.36-1,533.50-406.48

Finding the Fourth Proportional to 1,022.36, 1,533.50 and 406.48

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Solution

The fourth proportional to 1,022.36, 1,533.50 and 406.48 is: 609.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.36 : 1,533.50 = 406.48 : x
  2. Step 2: Convert to fraction form
    1,022.36/1,533.50 = 406.48/x
  3. Step 3: Cross multiply
    1,022.36x = 1,533.50 × 406.48
  4. Step 4: Simplify right side
    1,022.36x = 623,337.08
  5. Step 5: Solve for x
    x = 623,337.08/1,022.36
  6. Step 6: Final answer
    x = 609.70

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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.