Home / 801,312.40-1,200,221.88-401,255.44

Finding the Fourth Proportional to 801,312.40, 1,200,221.88 and 401,255.44

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Solution

The fourth proportional to 801,312.40, 1,200,221.88 and 401,255.44 is: 601,008.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,312.40 : 1,200,221.88 = 401,255.44 : x
  2. Step 2: Convert to fraction form
    801,312.40/1,200,221.88 = 401,255.44/x
  3. Step 3: Cross multiply
    801,312.40x = 1,200,221.88 × 401,255.44
  4. Step 4: Simplify right side
    801,312.40x = 481,595,558,557.03
  5. Step 5: Solve for x
    x = 481,595,558,557.03/801,312.40
  6. Step 6: Final answer
    x = 601,008.49

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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.