Home / 547,904.20-821,273.10-210,814.60

Finding the Fourth Proportional to 547,904.20, 821,273.10 and 210,814.60

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Solution

The fourth proportional to 547,904.20, 821,273.10 and 210,814.60 is: 315,997.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,904.20 : 821,273.10 = 210,814.60 : x
  2. Step 2: Convert to fraction form
    547,904.20/821,273.10 = 210,814.60/x
  3. Step 3: Cross multiply
    547,904.20x = 821,273.10 × 210,814.60
  4. Step 4: Simplify right side
    547,904.20x = 173,136,360,067.26
  5. Step 5: Solve for x
    x = 173,136,360,067.26/547,904.20
  6. Step 6: Final answer
    x = 315,997.50

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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.