Home / 807,515.90-1,211,383.20-301,954.40

Finding the Fourth Proportional to 807,515.90, 1,211,383.20 and 301,954.40

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Solution

The fourth proportional to 807,515.90, 1,211,383.20 and 301,954.40 is: 452,972.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,515.90 : 1,211,383.20 = 301,954.40 : x
  2. Step 2: Convert to fraction form
    807,515.90/1,211,383.20 = 301,954.40/x
  3. Step 3: Cross multiply
    807,515.90x = 1,211,383.20 × 301,954.40
  4. Step 4: Simplify right side
    807,515.90x = 365,782,487,326.08
  5. Step 5: Solve for x
    x = 365,782,487,326.08/807,515.90
  6. Step 6: Final answer
    x = 452,972.49

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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.