Home / 812,102.50-1,120,685.22-449,526.28

Finding the Fourth Proportional to 812,102.50, 1,120,685.22 and 449,526.28

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Solution

The fourth proportional to 812,102.50, 1,120,685.22 and 449,526.28 is: 620,337.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,102.50 : 1,120,685.22 = 449,526.28 : x
  2. Step 2: Convert to fraction form
    812,102.50/1,120,685.22 = 449,526.28/x
  3. Step 3: Cross multiply
    812,102.50x = 1,120,685.22 × 449,526.28
  4. Step 4: Simplify right side
    812,102.50x = 503,777,457,997.58
  5. Step 5: Solve for x
    x = 503,777,457,997.58/812,102.50
  6. Step 6: Final answer
    x = 620,337.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.