Home / 799,820.88-1,199,489.08-420,537.28

Finding the Fourth Proportional to 799,820.88, 1,199,489.08 and 420,537.28

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Solution

The fourth proportional to 799,820.88, 1,199,489.08 and 420,537.28 is: 630,678.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    799,820.88 : 1,199,489.08 = 420,537.28 : x
  2. Step 2: Convert to fraction form
    799,820.88/1,199,489.08 = 420,537.28/x
  3. Step 3: Cross multiply
    799,820.88x = 1,199,489.08 × 420,537.28
  4. Step 4: Simplify right side
    799,820.88x = 504,429,875,092.90
  5. Step 5: Solve for x
    x = 504,429,875,092.90/799,820.88
  6. Step 6: Final answer
    x = 630,678.55

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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.