Home / 812,517.29-1,121,259.93-449,933.34

Finding the Fourth Proportional to 812,517.29, 1,121,259.93 and 449,933.34

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Solution

The fourth proportional to 812,517.29, 1,121,259.93 and 449,933.34 is: 620,900.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,517.29 : 1,121,259.93 = 449,933.34 : x
  2. Step 2: Convert to fraction form
    812,517.29/1,121,259.93 = 449,933.34/x
  3. Step 3: Cross multiply
    812,517.29x = 1,121,259.93 × 449,933.34
  4. Step 4: Simplify right side
    812,517.29x = 504,492,225,313.07
  5. Step 5: Solve for x
    x = 504,492,225,313.07/812,517.29
  6. Step 6: Final answer
    x = 620,900.30

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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.