Home / 804,919.80-1,205,997.30-425,278.20

Finding the Fourth Proportional to 804,919.80, 1,205,997.30 and 425,278.20

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Solution

The fourth proportional to 804,919.80, 1,205,997.30 and 425,278.20 is: 637,186.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,919.80 : 1,205,997.30 = 425,278.20 : x
  2. Step 2: Convert to fraction form
    804,919.80/1,205,997.30 = 425,278.20/x
  3. Step 3: Cross multiply
    804,919.80x = 1,205,997.30 × 425,278.20
  4. Step 4: Simplify right side
    804,919.80x = 512,884,360,948.86
  5. Step 5: Solve for x
    x = 512,884,360,948.86/804,919.80
  6. Step 6: Final answer
    x = 637,186.91

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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.