Home / 804,949.80-1,206,042.30-425,308.20

Finding the Fourth Proportional to 804,949.80, 1,206,042.30 and 425,308.20

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Solution

The fourth proportional to 804,949.80, 1,206,042.30 and 425,308.20 is: 637,231.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,949.80 : 1,206,042.30 = 425,308.20 : x
  2. Step 2: Convert to fraction form
    804,949.80/1,206,042.30 = 425,308.20/x
  3. Step 3: Cross multiply
    804,949.80x = 1,206,042.30 × 425,308.20
  4. Step 4: Simplify right side
    804,949.80x = 512,939,679,736.86
  5. Step 5: Solve for x
    x = 512,939,679,736.86/804,949.80
  6. Step 6: Final answer
    x = 637,231.89

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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.