Home / 804,929.80-1,206,012.30-425,288.20

Finding the Fourth Proportional to 804,929.80, 1,206,012.30 and 425,288.20

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Solution

The fourth proportional to 804,929.80, 1,206,012.30 and 425,288.20 is: 637,201.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,929.80 : 1,206,012.30 = 425,288.20 : x
  2. Step 2: Convert to fraction form
    804,929.80/1,206,012.30 = 425,288.20/x
  3. Step 3: Cross multiply
    804,929.80x = 1,206,012.30 × 425,288.20
  4. Step 4: Simplify right side
    804,929.80x = 512,902,800,244.86
  5. Step 5: Solve for x
    x = 512,902,800,244.86/804,929.80
  6. Step 6: Final answer
    x = 637,201.90

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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.