Home / 547,518.64-821,135.40-231,813.04

Finding the Fourth Proportional to 547,518.64, 821,135.40 and 231,813.04

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Solution

The fourth proportional to 547,518.64, 821,135.40 and 231,813.04 is: 347,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,518.64 : 821,135.40 = 231,813.04 : x
  2. Step 2: Convert to fraction form
    547,518.64/821,135.40 = 231,813.04/x
  3. Step 3: Cross multiply
    547,518.64x = 821,135.40 × 231,813.04
  4. Step 4: Simplify right side
    547,518.64x = 190,349,893,325.62
  5. Step 5: Solve for x
    x = 190,349,893,325.62/547,518.64
  6. Step 6: Final answer
    x = 347,659.20

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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.