Home / 547,814.20-821,721.30-173,836.60

Finding the Fourth Proportional to 547,814.20, 821,721.30 and 173,836.60

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Solution

The fourth proportional to 547,814.20, 821,721.30 and 173,836.60 is: 260,754.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,814.20 : 821,721.30 = 173,836.60 : x
  2. Step 2: Convert to fraction form
    547,814.20/821,721.30 = 173,836.60/x
  3. Step 3: Cross multiply
    547,814.20x = 821,721.30 × 173,836.60
  4. Step 4: Simplify right side
    547,814.20x = 142,845,236,939.58
  5. Step 5: Solve for x
    x = 142,845,236,939.58/547,814.20
  6. Step 6: Final answer
    x = 260,754.90

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1.5x scale

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.