Home / 804,865.20-1,206,860.40-331,598.40

Finding the Fourth Proportional to 804,865.20, 1,206,860.40 and 331,598.40

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Solution

The fourth proportional to 804,865.20, 1,206,860.40 and 331,598.40 is: 497,217.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,865.20 : 1,206,860.40 = 331,598.40 : x
  2. Step 2: Convert to fraction form
    804,865.20/1,206,860.40 = 331,598.40/x
  3. Step 3: Cross multiply
    804,865.20x = 1,206,860.40 × 331,598.40
  4. Step 4: Simplify right side
    804,865.20x = 400,192,977,663.36
  5. Step 5: Solve for x
    x = 400,192,977,663.36/804,865.20
  6. Step 6: Final answer
    x = 497,217.39

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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.