Home / 812,008.48-1,120,573.92-449,457.36

Finding the Fourth Proportional to 812,008.48, 1,120,573.92 and 449,457.36

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Solution

The fourth proportional to 812,008.48, 1,120,573.92 and 449,457.36 is: 620,252.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,008.48 : 1,120,573.92 = 449,457.36 : x
  2. Step 2: Convert to fraction form
    812,008.48/1,120,573.92 = 449,457.36/x
  3. Step 3: Cross multiply
    812,008.48x = 1,120,573.92 × 449,457.36
  4. Step 4: Simplify right side
    812,008.48x = 503,650,195,768.05
  5. Step 5: Solve for x
    x = 503,650,195,768.05/812,008.48
  6. Step 6: Final answer
    x = 620,252.38

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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.